查询词典 fractional

Comparing with classical viscoelastic models, fractional derivative models describe not only the constitutive of viscoelastic material and the related mechanics properties accurately in wide range, but also need less model parameters.

分数导数模型与其他经典模型相比不但能够精确地描述粘弹性材料的本构关系及其力学特性，而且确定模型所需实验参数少、能够在较宽的频率范围内描述材料的力学行为。

Fractional distillation of petroleum is carried on in a still.

石油的分馏在蒸馏器内进行。

2It is not always easy to separate a mixture Of liquids into pure substances by fractional distillation.

采取分馏的办法把一种混合的液体分成纯物质，这并不总是很轻易的。

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。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。