有奖纠错
| 划词

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

以BTEAC(苄基三乙基氯化铵)为催化剂合成了烟酸乙酯。

评价该例句:好评差评指正

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

由苯酰氯在无水三氯化铝作催化剂的条件下制备苯基丙基酮。

评价该例句:好评差评指正

用户正在搜索


carvan, carve, carve out of, carve-built, carved, carvel, carvel-built, carven, carveol, carver,

相似单词


3G, 401(K), a,

声明:以上例句、词性分类均由互联网资源自动生成,部分未经过人工审核,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。

冷知识百科大全

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

ISO 标准是免费的, 而且价

评价该例句:好评差评指正
TED(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。

评价该例句:好评差评指正

用户正在搜索


caryocinesis, caryogenetics, Caryogonad, caryogram, caryokinesis, caryolite, caryolobism, caryology, caryolymph, caryolysis,

相似单词


3G, 401(K), a,
  • 微信二维码

    关注我们的微信

  • 手机客户端二维码

    下载手机客户端

赞助商链接