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The method was established for purification of diflubenzuron by crystal technique with mixed solvents.

本文论述了利用混溶剂——结晶法提纯的分析技术。

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A new typal insecticide, its generation, physical and chemical properties, insecticidal mechanism, insecticidal characteristic and synthesis of diflubenzuron are introduced.

介绍了新型杀剂──的发现、理性质、杀机理、杀特点及成方法。

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More and more attention is being paid to their functions in anti-cancer, analgesia, regulating cholesterol level in the human body,preventing atheroma,deinsectization and other aspects.

柠檬苦素类在抗癌、镇痛、调节体内胆固醇水平、防止动脉粥样等方面的作用,越来越受到人们的重视。

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3G, 401(K), a,

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老友记第三季

Bottle next to the shaving cream. -Worm medicine for the duck.

刮胡膏旁边那一瓶 鸭子药。

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CNN 精选 2016年8月

Use clothing that has permethrin put into it.

要穿上带有菊脂服装。

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摩登家庭第十季_Modern Family-Season10

Thank you. That was the exterminator.

谢谢,刚才我跟员说了。

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双语版 TED-Ed 演讲精选

The pyrethroid keeps the sodium channels open, so the nerves fire repeatedly.

菊酯使离子通道保持开放,导致神经不断反射。

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BBC英语大破解

So, you're doing the measuring to tell you where to go in and then treat.

通过监测,这个系统可以告诉你臭所在准确位置,以助

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精选英语短文

The government says its campaign will include periodic steam-cleaning of subway seats.

政府表活动将包括对地铁座椅进行定期蒸汽清洁。

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双语版 TED-Ed 演讲精选

But if a resistant roach is exposed to pyrethroids, it'll be just fine.

但是如果抗药性蟑螂接触到菊酯,并不会怎样。

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双语版 TED-Ed 演讲精选

Genetic mutations have given them sodium channels that the pyrethroids can't bind to.

基因突变使它们拥有拟菊酯无法结通道。

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摩登家庭第十季_Modern Family-Season10

He is, uh, on his way, but he's gonna have to tent the house for a couple of days.

他马上赶过来,但那几天他得用帐篷把房子围起来。

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查莉成长日记 第3季

This might be a job for Captain Extermo.

这是队长工作。

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查莉成长日记 第4季

Is this gonna be a bug story?

又是一个故事吗?

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老友记Friends 第三季

Green bottle next to the shaving cream. - Oh. Worm medicine for the duck.

刮胡膏旁边那一瓶 –鸭子药。

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TED-Ed(视频版)

But if a resistant roach is exposed to pyrethroids, it’ll be just fine.

但如果一只抗性蟑螂暴露于拟菊酯, 它就会没事。

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查莉成长日记 第3季

Captain Extermo, sleeping on the couch every night for the rest of his life.

队长 下半辈子每晚都给老娘睡沙发。

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都爱雷蒙德 第6季

So I was thinkin' we could cancel the exterminator.

所以我在想咱们可以 取消公司协约了。

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查莉成长日记 第4季

He was the exterminator back home in Hollow Rock.

他本来是我家乡师。

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查莉成长日记 第4季

Say what you want about exterminators, but we know how to party.

说你想让专家干什么吧 我们可是知道怎样开派对。

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查莉成长日记 第4季

But he sure does tell a lot of bug stories.

但是他太喜欢说那些故事。

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哈利波特与凤凰社

Feeling Mrs Weasley's eyes on the back of his head, Harry regretfully closed the drawing-room door and rejoined the Doxy party.

感觉到韦斯莱太太目光落在他后脑勺上,哈利懊悔把画室门关上并重新加入了队伍。

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查莉成长日记 第4季

I know killing bugs is an ugly business.

我知道界充满了黑幕和丑闻。

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chard, Chardonnay, chare, Chareae, Chares, Charford, charge, charge account, charge card, charge plate,

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