查询词典 distilled

Herein, we report the enantioselective total syntheses of slagenins A-C and their antipodes. Starting from readily available ethyl -4-chloro-3-hydroxy-butanonate, elongation of the carbon chain with diazomethane, followed by oxidation of the given α-diazoketone using distilled DMD, afforded a key intermediate α-ketoaldehyde .

本文从方便易得的-4-氯-3-羟基-丁酸乙酯出发，经重氮甲烷延伸碳连、DMD氧化相应的α-重氮酮，制得α-酮醛；该化合物与尿素在氢氟酸作用下，以协同方式非对映选择性的直接构建了cis-四氢呋喃并[2，3-d]咪唑啉-2-酮双环结构，进而合成了天然产物slagenins A、B、和C的对映体。

Dichloromethane was distilled from calcium hydride before use.

二氯甲烷是由钙氢化物蒸馏之前使用。

The distilled water and potassium dichromate (0.05%) were used as the negative and positive control respectively.

恢复培养24h后，将根尖固定、酸解、染色、压片和镜检，并计算微核率和染色体畸变率。

Therefore, in view of utilizing the best information distilled from the observational data, the traditional method of solving differential equation, of course, is not perfect.

因此从充分利用预测数据中包含的信息来看，传统的求解微分方程预测未来的方法显然是有缺陷的。

The dioxane solution was concentrated by evaporation and the remaining oil was distilled in vacuo on a water bath.

在二氧六环的解决办法是通过蒸发浓缩和剩余油是在真空中蒸馏水上热水澡。

But we only have distilled water and there will be a charge.

但我们只有蒸馏水而且是要收费的。

This is the distilled water that we collect.

这是我们收集到的蒸馏水。

This is the distilled spirit with Beijing's flavor, would you like to taste it?

这是北京的白酒，你不尝一口吗？

A:Certainly. But we only have distilled water and there will be a charge.

当然可以。但我们只有蒸馏水而且是要收费的。

He says that art is the answer, as art is distilled from suffering.

他说，最先进的答案是，因为艺术是源自痛苦。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。