A new drying method of plant specimens for scanning electron microscopy& the t-butyl alcohol freeze-drying method

Studies on the hydrolysis reaction of t-butyl chloride by GC

用GC法研究叔丁基氯的水解反应

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Thermodynamic Functions of Transfer of Naphthalene from Water to Water-t-butyl Alcohol Solutions

萘由水到水-叔丁醇混合溶剂的迁移热力学函数

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Treating cancerogenic methyl t-butyl ether pollutant by microbes;

微生物治理甲基叔丁基醚致癌污染物；

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Determination of t-Butyl Hydroperoxide and di-t-Butyl Peroxide by Gas Chromatography

气相色谱法测定叔丁基过氧化氢和二叔丁基过氧化物

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But once outside, he knew he had made a mistake.

一出来，才晓得自己的错误。

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But once the news of your father's illness becomes public.

但你父亲重病的消息一公开。

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Okay, but once you get in, bring my key right back.

是的，一旦你进到屋里，就马上将我的钥匙还回来。

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I? expect to pass through this world but once;

在这个世界上，我只能一次性走过；

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But once I make a decision.

但是要由我来做决定。

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But once we put him out.

但是一旦我们把他麻醉。

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Cannot step on land but once every ten years.

不能上岸，他每十年才能踏上土地一次。

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But once started, it is of course a continuous process.

但是这个一旦开始，它将是持续不断的。

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But once they do, there's no going back.

但是一旦开始反抗，就义无反顾。

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The swan is said to sing but once in its life-when it knows that it is about to die.

据说，天鹅一生只唱一次歌，只有在他死期临近时才唱。

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Christmas comes but once a year, you can diet in the New Year.

圣诞节一年才一次，你过了年再减肥吧。

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You have had your present already. Christmas comes but once a year.

你已经得到了圣诞礼物。圣诞节可是一年只有一次哦。

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But once the sea walls almost put the village in great danger.

但有一次，海堤差点给这个村庄带来极大的危险。

中考真题- 2016 长春 阅读E

Athens was not in the farthest background of his mind, but once man has a great and good idea, it is never completely lost.

雅典并不位列在他脑中最深邃的背景中，然而一旦人类有了一个伟大而美好的想法，那就永不会消失。

高考真题- 2015 江苏 阅读D

"An individual's genetics has a big influence on their height, but once you average over whole populations, genetics plays a less key role," he added.

他补充说:“一个人的基因对其身高有很大的影响，但是一旦把他们的身髙平均到整个人群中，基因的作用就不那么重要了。”

四级真题- 2019年 6月 3卷 阅读B

Now, she attributes much of her understanding of college to that ： "But once I got to campus, it was a completely different ball game that no one really prepared me for."

现在她对大学的理解是：“一旦我进入学校，情况就完全不同了，没人真正为我做好准备。”

六级真题- 2015年 12月 1卷 信息匹配