The journal rubs against the bearing surface.

轴颈在轴承面上擦。

There is some friction among the family members.

家庭成员间有些擦。

He has had a few brushes with them.

他曾与他们有点擦。

He rubbed his limbs vigorously to get the blood circulating.

他用力擦四肢让血液循环开来。

The friction force is therefore called a nonconservative or a dissipative force.

因此，擦力称为非保守力或耗散力。

When Joan returned to work, the friction between them increased.

琼回来工作后, 他们之间的擦加剧了。

That door rubs on the floor.

那扇门与地板擦。

This insect makes its strange noise by rubbing its back legs together.

这只擦它的两条后腿发出种奇怪的声音。

Friction gradually caused the sliding box to slow down and stop.

擦力使向下滑的箱子慢下来后停住。

I can’t bear the sound of chalk scraping on a blackboard.

我受不了粉笔在黑板上擦时发出的刺耳声音。

In designing a machine it is necessary to reduce friction as much as possible.

在种机器时, 必须尽可能减低擦。

The continuing activities, has the friction with clothes to affect flesh's eupnea, becomes dry.

经常活动，与衣服产生擦而影响肌肤的正常呼吸，变得干燥。

Semimetal Brake Materialsconsist of reinforcing fiber,friction element,lubricste elementand polymer.

半金属制动材料是由增强纤维、增塑剂、擦组元、润滑组元和树脂组成的。

The worn surface morphology of ADZ ceramic was analyzed with a scanning electron microscope.

与去离子水相比,在小牛血清润滑条件下ADZ陶瓷的擦因数和磨损率降低。

Matches are lighted by friction.

火柴由擦而生火。

Friction brake prevents overspin.

擦制动防止overspin 。

Oil can reduce friction.

润滑油能减小擦力。

Abstract: Triboluminescence is the emission of light caused by applicationof mechanical energy to a solid.

擦发光物质在材料科学领域倍受人们关注。

And microscopic analysis indicates that some microsize mineral particles embedded friction surface, which make friction surface strengthened and recoverable.

同时，微观分析表明，微小的圣矿物粒子大量嵌入擦表面，可对擦表面起到强化和修复的作用。

Here, free electrons rub off the con ductor and create a charge imbalance that causes the current flow.

这时，擦引起自由电子脱离导体，产生电荷不平衡，从而产生电流。

The journal rubs against the bearing surface.

轴颈在轴承面上。

There is some friction among the family members.

家庭成员间有些。

He has had a few brushes with them.

他曾与他们有点。

He rubbed his limbs vigorously to get the blood circulating.

他用力四肢让血液循环开来。

The friction force is therefore called a nonconservative or a dissipative force.

因此，力称为非保守力或耗散力。

When Joan returned to work, the friction between them increased.

琼回来工作后, 他们之间的了。

That door rubs on the floor.

那扇门与地板。

This insect makes its strange noise by rubbing its back legs together.

这只昆虫它的两条后腿发出一种奇怪的声音。

Friction gradually caused the sliding box to slow down and stop.

力使向下滑的箱子慢下来后停住。

I can’t bear the sound of chalk scraping on a blackboard.

我受不了粉笔在黑板上时发出的刺耳声音。

In designing a machine it is necessary to reduce friction as much as possible.

在设计一种机器时, 必须尽可能减低。

The continuing activities, has the friction with clothes to affect flesh's eupnea, becomes dry.

常活动，与衣服产生而影响肌肤的正常呼吸，变得干燥。

Semimetal Brake Materialsconsist of reinforcing fiber,friction element,lubricste elementand polymer.

半金属制动材料是由增强纤维、增塑剂、组元、润滑组元和树脂组成的。

The worn surface morphology of ADZ ceramic was analyzed with a scanning electron microscope.

与去离子水相比,在小牛血清润滑条件下ADZ陶瓷的因数和磨损率降低。

Matches are lighted by friction.

火柴由而生火。

Friction brake prevents overspin.

制动防止overspin 。

Oil can reduce friction.

润滑油能减小力。

Abstract: Triboluminescence is the emission of light caused by applicationof mechanical energy to a solid.

发光物质在材料科学领域倍受人们关注。

And microscopic analysis indicates that some microsize mineral particles embedded friction surface, which make friction surface strengthened and recoverable.

同时，微观分析表明，微小的圣矿物粒子大量嵌入表面，可对表面起到强化和修复的作用。

Here, free electrons rub off the con ductor and create a charge imbalance that causes the current flow.

这时，引起自由电子脱离导体，产生电荷不平衡，从而产生电流。

The journal rubs against the bearing surface.

轴颈在轴承面上摩擦。

There is some friction among the family members.

家庭成员间有些摩擦。

He has had a few brushes with them.

他曾与他们有点摩擦。

He rubbed his limbs vigorously to get the blood circulating.

他用力摩擦四肢让血液来。

The friction force is therefore called a nonconservative or a dissipative force.

因此，摩擦力称为非保守力或耗散力。

When Joan returned to work, the friction between them increased.

琼回来工作后, 他们之间的摩擦加剧了。

That door rubs on the floor.

那扇门与地板摩擦。

This insect makes its strange noise by rubbing its back legs together.

这只昆虫摩擦它的两条后腿发出一种奇怪的声音。

Friction gradually caused the sliding box to slow down and stop.

摩擦力使向下滑的箱子慢下来后停住。

I can’t bear the sound of chalk scraping on a blackboard.

我受不了粉笔在黑板上摩擦时发出的刺耳声音。

In designing a machine it is necessary to reduce friction as much as possible.

在设计一种机器时, 必须尽可能减低摩擦。

The continuing activities, has the friction with clothes to affect flesh's eupnea, becomes dry.

经常活，与衣服产生摩擦而影响肌肤的正常呼吸，变得干燥。

Semimetal Brake Materialsconsist of reinforcing fiber,friction element,lubricste elementand polymer.

半金属制是由增强纤维、增塑剂、摩擦组元、润滑组元和树脂组成的。

The worn surface morphology of ADZ ceramic was analyzed with a scanning electron microscope.

与去离子水相比,在小牛血清润滑条件下ADZ陶瓷的摩擦因数和磨损率降低。

Matches are lighted by friction.

火柴由摩擦而生火。

Friction brake prevents overspin.

摩擦制防止overspin 。

Oil can reduce friction.

润滑油能减小摩擦力。

Abstract: Triboluminescence is the emission of light caused by applicationof mechanical energy to a solid.

摩擦发光物质在科学领域倍受人们关注。

And microscopic analysis indicates that some microsize mineral particles embedded friction surface, which make friction surface strengthened and recoverable.

同时，微观分析表明，微小的摩圣矿物粒子大量嵌入摩擦表面，可对摩擦表面起到强化和修复的作用。

Here, free electrons rub off the con ductor and create a charge imbalance that causes the current flow.

这时，摩擦引起自由电子脱离导体，产生电荷不平衡，从而产生电流。

The journal rubs against the bearing surface.

轴颈在轴承面上。

There is some friction among the family members.

家庭成员间有些。

He has had a few brushes with them.

他曾与他们有点。

He rubbed his limbs vigorously to get the blood circulating.

他用力四肢让血液循环开来。

The friction force is therefore called a nonconservative or a dissipative force.

因此，力称为非保守力或耗散力。

When Joan returned to work, the friction between them increased.

琼回来工作后, 他们之间的加剧了。

That door rubs on the floor.

那扇门与地板。

This insect makes its strange noise by rubbing its back legs together.

这只昆虫它的两条后腿发奇怪的声音。

Friction gradually caused the sliding box to slow down and stop.

力使向下滑的箱子慢下来后停住。

I can’t bear the sound of chalk scraping on a blackboard.

我受不了粉笔在黑板上发的刺耳声音。

In designing a machine it is necessary to reduce friction as much as possible.

在设计机器, 必须尽可能减低。

The continuing activities, has the friction with clothes to affect flesh's eupnea, becomes dry.

经常活动，与衣服产生而影响肌肤的正常呼吸，变得干燥。

Semimetal Brake Materialsconsist of reinforcing fiber,friction element,lubricste elementand polymer.

半金属制动材料是由增强纤维、增塑剂、组元、润滑组元和树脂组成的。

The worn surface morphology of ADZ ceramic was analyzed with a scanning electron microscope.

与去离子水相比,在小牛血清润滑条件下ADZ陶瓷的因数和磨损率降低。

Matches are lighted by friction.

火柴由而生火。

Friction brake prevents overspin.

制动防止overspin 。

Oil can reduce friction.

润滑油能减小力。

Abstract: Triboluminescence is the emission of light caused by applicationof mechanical energy to a solid.

发光物质在材料科学领域倍受人们关注。

And microscopic analysis indicates that some microsize mineral particles embedded friction surface, which make friction surface strengthened and recoverable.

同，微观分析表明，微小的圣矿物粒子大量嵌入表面，可对表面起到强化和修复的作用。

Here, free electrons rub off the con ductor and create a charge imbalance that causes the current flow.

这，引起自由电子脱离导体，产生电荷不平衡，从而产生电流。

The journal rubs against the bearing surface.

轴颈在轴承面上摩擦。

There is some friction among the family members.

家庭成员间有些摩擦。

He has had a few brushes with them.

他曾与他们有点摩擦。

He rubbed his limbs vigorously to get the blood circulating.

他用力摩擦四肢让血液循环开来。

The friction force is therefore called a nonconservative or a dissipative force.

因此，摩擦力称为非保守力或耗散力。

When Joan returned to work, the friction between them increased.

琼回来工作后, 他们之间的摩擦加剧了。

That door rubs on the floor.

那扇门与地板摩擦。

This insect makes its strange noise by rubbing its back legs together.

虫摩擦它的两条后腿发出奇怪的声音。

Friction gradually caused the sliding box to slow down and stop.

摩擦力使向下滑的箱子慢下来后停住。

I can’t bear the sound of chalk scraping on a blackboard.

我受不了粉笔在黑板上摩擦时发出的刺耳声音。

In designing a machine it is necessary to reduce friction as much as possible.

在设计器时, 必须尽可能减低摩擦。

The continuing activities, has the friction with clothes to affect flesh's eupnea, becomes dry.

经常活动，与衣服产生摩擦而影响肌肤的正常呼吸，变得干燥。

Semimetal Brake Materialsconsist of reinforcing fiber,friction element,lubricste elementand polymer.

半金属制动材料是由增强纤维、增塑剂、摩擦组元、润滑组元和树脂组成的。

The worn surface morphology of ADZ ceramic was analyzed with a scanning electron microscope.

与去离子水相比,在小牛血清润滑条件下ADZ陶瓷的摩擦因数和磨损率降低。

Matches are lighted by friction.

火柴由摩擦而生火。

Friction brake prevents overspin.

摩擦制动防止overspin 。

Oil can reduce friction.

润滑油能减小摩擦力。

Abstract: Triboluminescence is the emission of light caused by applicationof mechanical energy to a solid.

摩擦发光物质在材料科学领域倍受人们关注。

And microscopic analysis indicates that some microsize mineral particles embedded friction surface, which make friction surface strengthened and recoverable.

同时，微观分析表明，微小的摩圣矿物粒子大量嵌入摩擦表面，可对摩擦表面起到强化和修复的作用。

Here, free electrons rub off the con ductor and create a charge imbalance that causes the current flow.

时，摩擦引起自由电子脱离导体，产生电荷不平衡，从而产生电流。

The journal rubs against the bearing surface.

轴颈轴承面上擦。

There is some friction among the family members.

家庭成员间有些擦。

He has had a few brushes with them.

他曾与他们有点擦。

He rubbed his limbs vigorously to get the blood circulating.

他用力擦四肢让血液循环开来。

The friction force is therefore called a nonconservative or a dissipative force.

因此，擦力称为非保守力或耗散力。

When Joan returned to work, the friction between them increased.

琼回来工作后, 他们之间的擦加剧了。

That door rubs on the floor.

那扇门与地板擦。

This insect makes its strange noise by rubbing its back legs together.

这只昆虫擦它的两条后腿发出一种奇怪的。

Friction gradually caused the sliding box to slow down and stop.

擦力使向下滑的箱子慢下来后停住。

I can’t bear the sound of chalk scraping on a blackboard.

我受不了黑板上擦时发出的刺耳。

In designing a machine it is necessary to reduce friction as much as possible.

设计一种机器时, 必须尽可能减低擦。

The continuing activities, has the friction with clothes to affect flesh's eupnea, becomes dry.

经常活动，与衣服产生擦而影响肌肤的正常呼吸，变得干燥。

Semimetal Brake Materialsconsist of reinforcing fiber,friction element,lubricste elementand polymer.

半金属制动材料是由增强纤维、增塑剂、擦组元、润滑组元和树脂组成的。

The worn surface morphology of ADZ ceramic was analyzed with a scanning electron microscope.

与去离子水相比,小牛血清润滑条件下ADZ陶瓷的擦因数和磨损率降低。

Matches are lighted by friction.

火柴由擦而生火。

Friction brake prevents overspin.

擦制动防止overspin 。

Oil can reduce friction.

润滑油能减小擦力。

Abstract: Triboluminescence is the emission of light caused by applicationof mechanical energy to a solid.

擦发光物质材料科学领域倍受人们关注。

And microscopic analysis indicates that some microsize mineral particles embedded friction surface, which make friction surface strengthened and recoverable.

同时，微观分析表明，微小的圣矿物粒子大量嵌入擦表面，可对擦表面起到强化和修复的作用。

Here, free electrons rub off the con ductor and create a charge imbalance that causes the current flow.

这时，擦引起自由电子脱离导体，产生电荷不平衡，从而产生电流。

The journal rubs against the bearing surface.

轴颈在轴承面上。

There is some friction among the family members.

家庭成员间有些。

He has had a few brushes with them.

他曾与他们有点。

He rubbed his limbs vigorously to get the blood circulating.

他用力四肢让血液循环开来。

The friction force is therefore called a nonconservative or a dissipative force.

因此，力称为非保守力或耗散力。

When Joan returned to work, the friction between them increased.

琼回来工作后, 他们之间的加剧。

That door rubs on the floor.

那扇门与地板。

This insect makes its strange noise by rubbing its back legs together.

这只昆虫它的两条后腿发出一种奇怪的声。

Friction gradually caused the sliding box to slow down and stop.

力使向下滑的箱子慢下来后停住。

I can’t bear the sound of chalk scraping on a blackboard.

我受不在黑板上时发出的刺耳声。

In designing a machine it is necessary to reduce friction as much as possible.

在设计一种机器时, 必须尽可能减低。

The continuing activities, has the friction with clothes to affect flesh's eupnea, becomes dry.

经常活动，与衣服产生而影响肌肤的正常呼吸，变得干燥。

Semimetal Brake Materialsconsist of reinforcing fiber,friction element,lubricste elementand polymer.

半金属制动材料是由增强纤维、增塑剂、组元、润滑组元和树脂组成的。

The worn surface morphology of ADZ ceramic was analyzed with a scanning electron microscope.

与去离子水相比,在小牛血清润滑条件下ADZ陶瓷的因数和磨损率降低。

Matches are lighted by friction.

火柴由而生火。

Friction brake prevents overspin.

制动防止overspin 。

Oil can reduce friction.

润滑油能减小力。

Abstract: Triboluminescence is the emission of light caused by applicationof mechanical energy to a solid.

发光物质在材料科学领域倍受人们关注。

And microscopic analysis indicates that some microsize mineral particles embedded friction surface, which make friction surface strengthened and recoverable.

同时，微观分析表明，微小的圣矿物粒子大量嵌入表面，可对表面起到强化和修复的作用。

Here, free electrons rub off the con ductor and create a charge imbalance that causes the current flow.

这时，引起自由电子脱离导体，产生电荷不平衡，从而产生电流。

The journal rubs against the bearing surface.

轴颈在轴承面上摩。

There is some friction among the family members.

家庭成员间有些摩。

He has had a few brushes with them.

他曾与他们有点摩。

He rubbed his limbs vigorously to get the blood circulating.

他用力摩四肢让血液循环开来。

The friction force is therefore called a nonconservative or a dissipative force.

因此，摩力称为非保守力或耗散力。

When Joan returned to work, the friction between them increased.

琼回来工作后, 他们之间的摩加剧了。

That door rubs on the floor.

那扇门与地板摩。

This insect makes its strange noise by rubbing its back legs together.

昆虫摩它的两条后腿发出一奇怪的声音。

Friction gradually caused the sliding box to slow down and stop.

摩力使向下滑的箱子慢下来后停住。

I can’t bear the sound of chalk scraping on a blackboard.

我受不了粉笔在黑板上摩时发出的刺耳声音。

In designing a machine it is necessary to reduce friction as much as possible.

在设计一时, 必须尽可能减低摩。

The continuing activities, has the friction with clothes to affect flesh's eupnea, becomes dry.

经常活动，与衣服产生摩而影响肌肤的正常呼吸，变得干燥。

Semimetal Brake Materialsconsist of reinforcing fiber,friction element,lubricste elementand polymer.

半金属制动材料是由增强纤维、增塑剂、摩组元、润滑组元和树脂组成的。

The worn surface morphology of ADZ ceramic was analyzed with a scanning electron microscope.

与去离子水相比,在小牛血清润滑条件下ADZ陶瓷的摩因数和磨损率降低。

Matches are lighted by friction.

火柴由摩而生火。

Friction brake prevents overspin.

摩制动防止overspin 。

Oil can reduce friction.

润滑油能减小摩力。

Abstract: Triboluminescence is the emission of light caused by applicationof mechanical energy to a solid.

摩发光物质在材料科学领域倍受人们关注。

And microscopic analysis indicates that some microsize mineral particles embedded friction surface, which make friction surface strengthened and recoverable.

同时，微观分析表明，微小的摩圣矿物粒子大量嵌入摩表面，可对摩表面起到强化和修复的作用。

Here, free electrons rub off the con ductor and create a charge imbalance that causes the current flow.

时，摩引起自由电子脱离导体，产生电荷不平衡，从而产生电流。

The journal rubs against the bearing surface.

轴颈在轴承面上摩擦。

There is some friction among the family members.

家庭成员间有些摩擦。

He has had a few brushes with them.

他曾与他们有点摩擦。

He rubbed his limbs vigorously to get the blood circulating.

他用力摩擦四肢让血液循环开来。

The friction force is therefore called a nonconservative or a dissipative force.

因此，摩擦力称守力或耗散力。

When Joan returned to work, the friction between them increased.

琼回来工作后, 他们之间的摩擦加剧了。

That door rubs on the floor.

那扇门与地板摩擦。

This insect makes its strange noise by rubbing its back legs together.

这只昆虫摩擦它的两条后腿发出一种奇怪的声音。

Friction gradually caused the sliding box to slow down and stop.

摩擦力使向下滑的箱子慢下来后停住。

I can’t bear the sound of chalk scraping on a blackboard.

我受不了粉笔在黑板上摩擦时发出的刺耳声音。

In designing a machine it is necessary to reduce friction as much as possible.

在设计一种机器时, 必须尽可能减低摩擦。

The continuing activities, has the friction with clothes to affect flesh's eupnea, becomes dry.

经常活动，与衣服产生摩擦而影响肌肤的正常，得干燥。

Semimetal Brake Materialsconsist of reinforcing fiber,friction element,lubricste elementand polymer.

半金属制动材料是由增强纤维、增塑剂、摩擦组元、润滑组元和树脂组成的。

The worn surface morphology of ADZ ceramic was analyzed with a scanning electron microscope.

与去离子水相比,在小牛血清润滑条件下ADZ陶瓷的摩擦因数和磨损率降低。

Matches are lighted by friction.

火柴由摩擦而生火。

Friction brake prevents overspin.

摩擦制动防止overspin 。

Oil can reduce friction.

润滑油能减小摩擦力。

Abstract: Triboluminescence is the emission of light caused by applicationof mechanical energy to a solid.

摩擦发光物质在材料科学领域倍受人们关注。

And microscopic analysis indicates that some microsize mineral particles embedded friction surface, which make friction surface strengthened and recoverable.

同时，微观分析表明，微小的摩圣矿物粒子大量嵌入摩擦表面，可对摩擦表面起到强化和修复的作用。

Here, free electrons rub off the con ductor and create a charge imbalance that causes the current flow.

这时，摩擦引起自由电子脱离导体，产生电荷不平衡，从而产生电流。