查询词典 distillation method

It occurs in minute amounts in the atmosphere and is obtained by fractional distillation of liquefied air.

大气中含量极少，从液态空气的蒸馏中可以得到。

Krypton occurs in trace amounts in the atmosphere and in rocks and is obtained by fractional distillation of liquefied air.

在大气和岩石中只有极微量的氪，可以通过液态空气的分馏来得到它。

In both cases, to achieve this effect the alcohol had to have been at least 95 percent, close to the maximum concentration attainable through fractional distillation.

在这两种情况下，要达到这个效果的酒精已已至少有95 ％，接近最高浓度达到通过分数蒸馏。

Krypton occurs in trace amounts in the atmosphere and in rock s and is obtained by fractional distillation of liquefied air.

在大气和岩石中只有极微量的氪，可以通过液态空气的分馏来得到它。

Pure'.'' substances by fractional distillation.

纯'。''物质，不总是轻而易举的事。

Vary 可变 Different components of air have different boiling points, they can be separated by fractional distillation of liquid air.

空气中不同的成分有不同的沸点，可把液态空气分馏来把它们分离。

An apparatus for the fractional distillation of ethanol from fermentation on an industrial scale.

规模生产从氨基酸发酵中分馏蒸馏乙醇的装置。

Spectral analysis of soil trace elements is based on fractional distillation of the element being detected in electric arc plasma.

本法根据被测元素在电弧等离子体中的分馏效应原理，选择合适的电极规格和内标缓冲剂，对土壤微量元素进行定量测定。

Pure DCP was obtained by fractional distillation in an atmospheric column with 20 theoretical stages.

纯磷酸氢钙得到分馏在一个大气柱， 20个理论阶段。

An apparatus for the fractional distillation of ''.

规模生产从氨基酸发酵中分馏蒸馏''。

There are different types of personal loans available.

有许多不同类型的个人贷款优惠。

The above mentioned teaching model of spiral rising can be used to avoid rigidness in teaching.

上述螺旋式上升的教学模式，可以避免教学形成模式後的僵化现象。