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What is the shelf life of 3M's filtering facepiece respirators?

3M随弃式呼口罩的存放期是多长时间?

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In the event of a fire, wear full protective clothing and NIOSH-approved self-contained breathing apparatus with full facepiece operated in the pressure demand or other positive pressure mode.

如果发生火灾,请要求的压力下,穿保衣和国立职业安全与究所批准的呼器械和口罩

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3G, 401(K), a,

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CRI在线 2020年5月合集

The donation includes surgical masks, N-95 respirators and safety goggles.

捐赠物品包括医用口罩、N-95防护口罩和护目镜。

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CRI在线 2020年8月合集

Mask-wearing is now mandatory in all indoor public places.

现在所有室内公共场所都佩戴口罩

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VOA Daily Standard 2021年3月合集

Texas is lifting its COVID-19 mask mandate.

德克萨斯州正在解除其新冠口罩令。

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VOA常速英语_

Half wearing masks and half rejecting science.

一半戴着口罩,另一半拒绝相信科学。

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科学60秒-科学国人 2021年10月合集

Tanya, we often talk about face masks or coverings as if they're all the same.

Tanya,们经常谈论口罩,仿佛所有口罩都一样。

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当月 CNN 10 学生英语 2021年1月合集

Where do you have to wear a mask?

在哪口罩

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CRI在线 2020年6月合集

The surgical masks will be distributed first among healthcare providers.

医用口罩将首先分发给医护人员。

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科学60秒-科学国人 2023年8月合集

Just remember to wear a good mask on your way there and back.

往返途中记得戴好口罩

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VOA常速英语_

Vice president Mike Pence has recently started wearing masks in public and encouraging their use.

副总统迈克·彭斯最近开始在公共场合戴口罩,并鼓励人们使用口罩

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BBC 听力 2020年4月合集

Masks and face coverings will be compulsory on public transports.

乘坐公共交通工具上口罩和面罩。

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当月 CNN 10 学生英语 2020年5月合集

Masks may be required on some campuses.

有些学校可能要配备口罩

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VOA Special 2021年1月合集

It is meant to fit over other kinds of face masks commonly worn by the public.

这款口罩需要覆盖在公众通常佩戴的其他类型的口罩之上。

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当月 CNN 10 学生英语 2020年12月合集

He is wearing a mask this time because 2020.

而今年它戴了口罩

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CCTV 见闻

But the US president still won't wear one. He doesn't like the idea of wearing it.

但是这位国总统仍然不戴口罩,他不喜欢戴口罩这个主意。

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当月 CNN 10 学生英语 2021年10月合集

But then he took his mask off.

但随后他摘下了口罩

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AP 听力 2020年5月合集

The N-95 mask alternative, called the Shepherd mask, is named for Shepherd University, where it was designed.

这款被称为谢伯德的口罩是N-95的替代口罩,是以设计这款口罩的谢伯德大学命名的。

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NPR音讯 2022年2月合集

Many states and cities have already lifted masking requirements.

许多州和城市已经取消了口罩要求。

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小囧上周今夜秀

When we went out, we wore a mask.

当出门的时候 们会带上口罩

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NPR音讯 2020年1月合集

Everybody's wearing masks. Even 40 miles away from it, they're wearing masks.

所有人都戴着口罩。即使距离火山有40英远,人们还是戴着口罩

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VOA常速英语_

26 million surgical masks and more than 5 million face shields.

2600万口罩和500多万面罩。

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measly, measurable, measurably, measurand, measuration, Measuray, measure, measure out, measure up, measured,

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