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Synthesis of ethyl iso nicotinate using BTEAC (benzyl triethyl ammonium chloride) as phase transfer catalyst was studied.

以BTEAC(苄化铵)为相转移催化剂合成了烟酸酯。

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Methyl 1 phenyl Propanone was synthesized with benzene and iso butyryl chloride by using anhydrous aluminium trichloride as catalyst.

由苯与丁酰在无化铝作催化剂的条件下制备苯酮。

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civil marriage, civil right, Civil Rights Movement, civil servant, civil service, civil suit, civil war, civil wrong, civil year, civilian,

相似单词


3G, 401(K), a,

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CNN 10 学生英语 2019年3月合集

In what professional field would you deal with Bokeh, ISO, and Hochu ?

在什么专业领域,你会处理 Bokeh,ISO,和 Hochu?

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Apple 最新资讯

And finally, HEIF is an ISO standard, which is critical for ecosystem adoption.

最后,HEIF 是 ISO 的,这对生态来说非常重要。

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财富精英励志演

Our customer service unit was the first to receive ISO 9002 certification in China for total quality.

我们的客户服务部在中国最先荣获ISO 9002质量证书。

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冷知识百科大全

ISO standards are not free, and they're not even cheap.

ISO 不是免费的, 而且价格也不便宜。

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VOA Special 2020年12月合集

South Korea's agriculture ministry on Sunday released a statement saying that the ISO approved standard does not apply to Kimchi.

韩国农业部周日发表声明称,国际组织批不适用于韩国泡菜。

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明星护肤小妙招

This one is the ISO placenta serum.

这是 ISO 胎盘血清。

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TED演(视频版) 2023年8月合集

And once again, I go online, and I teach myself about ISO and aperture on YouTube.

我再次上​​网,在 YouTube 上自学 ISO 和光圈。

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Engvid超级外教Rebecca - 商务英语

So it's basically an organization that sets quality benchmarks, ISO. Okay?

所以上是一个设置质量的组织,ISO。好的?

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冷知识百科大全

That’s because the ISO is a supranational organization—its above governments.

那是因为 ISO 是一个超国家组织——凌驾于政府之上。

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冷知识百科大全

But back to the cup of tea, ISO standard 3103.

但回到那杯茶, ISO 3103。

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少儿畅学课堂

Be sure whatever filter you select is ISO certified, and check to make sure they are not scratched or damaged before use.

不管你选的什么滤光片,要确保是ISO认证,使用前检查一下,确保没有刮痕,没有损坏。

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VOA Special 2020年12月合集

" It is inappropriate to report (about Pao Cai winning the ISO) without differentiating Kimchi from Pao Cai of China's Sichuan, " the statement said.

" 在不将韩国泡菜与四川泡菜区分开的情况下报道泡菜获得国际组织认证是不恰当的。"

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冷知识百科大全

Perhaps being the more sensible inhabitants of the British Isles, the Irish have, however, officially expressed disapproval of ISO standard 3103.

然而, 作为不列颠群岛较为明智的居民,爱尔兰人已正式表示不赞成 ISO 3103。

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Engvid超级外教Rebecca - 商务英语

Of course, there are organizations that have tried to standardize this, a very well-known organization is the International Organization for Standards, also known as ISO, right?

当然,也有一些组织试图将其,一个非常知名的组织是国际组织, 也就是 ISO, 对吧?

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TED-Ed(视频版)

The addition of a head a year later gave it a more human form, and within ten years, it was endorsed by both the United Nations and the ISO.

一年后增加了一个人头,使其更具人性,并在十年内获得了联合国和国际组织的认可。

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Engvid超级外教Rebecca - 商务英语

So, let's say that August 1st, 2018 would be written this way in these countries and any other countries that actually decide to follow this ISO 8601 system.

因此,假设 2018 年 8 月 1 日在这些国家和任何其他实际决定遵循此 ISO 8601 系统的国家/地区将以这种方式编写。

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TED-Ed(视频版)

You may know it as the wheelchair symbol, or a sign for people with disabilities, but its formal title as maintained by the ISO is the International Symbol of Access.

您可能知道是轮椅志或残疾人志,但 ISO 维护的正式名称是国际无障碍志。

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冷知识百科大全

Now, before you go and say that it’s absurd that the ISO sells a tea recipe for so much, you have the consider the actual use of such a thing.

现在, 在你说 ISO 以如此高的价格出售茶配方是荒谬的之前,你必须考虑一下这种东西的实际用途。

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Engvid超级外教Rebecca - 商务英语

It may be followed in some countries, for example, we said in China, Korea, and Japan they actually do follow the ISO 8601 system which says you must write it as year, month, day.

有的国家可能会遵循,比如我们说中国、韩国、日其实是遵循ISO 8601体系的,就是说必须写成年月日。

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Engvid超级外教Rebecca - 商务英语

So you might see in a particular company that they are ISO 9,000 certified or something like that, and that's very important because it indicates that they have a certain degree of quality in that organization regarding that area.

因此,您可能会在一家特定公司看到他们通过了 ISO 9, 000 认证或类似认证,这非常重要, 因为这表明他们在该组织中在该领域具有一定程度的质量。

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clanger, clanging, clangor, clangorous, clangour, clanism, clank, clanking, clanks, Clannad,

相似单词


3G, 401(K), a,
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