• 氟化催化下,芳香发生克脑格尔缩合反应,得到高产缩合产物

    The knoevenagel condensation of aromatic aldehydes with ethyl cyanoacetate proceeds smoothly in the presence of potassium fluoride giving products in high yield.

    youdao

  • 氟化催化下,芳香发生克脑格尔缩合反应,得到高产率的缩合产物。且得到E异构体

    The knoevenagel condensation of aromatic aldehydes with ethyl cyanoacetate proceeds smoothly in the presence of potassium fluoride giving products in high yield. Only the E isomers could be isolated.

    youdao

  • 具体而言,有改正、增补脱删除保存作用。

    Such as correcting mistakes of texts, putting right the reversal words, supplementing the missing words, deleting the unwanted words, saving the different words and etc.

    youdao

  • 帕罗曾经踢进了,而今天来自中场助攻再次决定比赛。

    Matteo Paro scored Juve's first ever Serie B goal and was again decisive today with his assists from midfield.

    youdao

  • 整理者根据竹简形制长短不同,将简分成甲、、丙组。

    The researchers divided these slips into three bundles based on their form and length.

    youdao

  • 整理者根据竹简形制长短不同,将简分成甲、、丙组。

    The researchers divided these slips into three bundles based on their form and length.

    youdao

$firstVoiceSent
- 来自原声例句
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定