查询词典 precool

Because preheat and precool increases the chamber charging pressure before the TDC, which is mechanically counter-productive.

因为预热和效果预冷室收费增加了柜台前，贸发局的压力，这是机械。

The energy saving principle of total heat exchanger is that it use discharge air to precool or preheat fresh air which can reduce the load of fresh air and save energy.

全热交换器的节能原理在于，它可以用排出的室内空气来预处理新风，使新风的负荷降低，从而节约空气处理设备的能源消耗。

The dry, cold air that leaves the evaporator flows through the second path of the precooler, such that the dry, cold air is used to precool the incoming moist air.

干旱，寒冷的空气离开蒸发器流经的第二个路径的precooler ，如干燥，寒冷的空气是用来预冷传入的潮湿空气。

A single-stage and high power pulse tube cooler working between 20~40 K has been designed and constructed in order to precool the second stage of a 4 K separate two-stage pulse tube cooler.

为了满足液氦温区分离型二级脉管制冷机第二级预冷的需要，设计制作了1台20～40K温区单级大功率脉管制冷机。

The ice/liquid mixtures of the coolant and the sample solution were respectively added in the Dewar bottle and the sample container to precool for 2～3 hours under stirri...

实验结果显示，改进的凝固点降低法测定摩尔质量实验装置结构合理，其测定误差可控制在±0.001℃以内。

To master the liquid helium transfer method correctly is of a great important sig-nificance in economy for reduction of the liquid helium precool amount, full use of the liquidhelium cool amount and increase of the transfer efficiency of liquid helium In this paper the construction and use demands of the liquid helium transfer tubes,liquidhelium precool and transfer methods are presented.

正确掌握液氦输送方法，对减少液氦预冷量、充分利用氦气冷量和提高液氦输送效率有着十分重要的经济意义。

The ice/liquid mixtures of the coolant and the sample solution were respectively added in the Dewar bottle and the sample container to precool for 2~3 hours under stirring. Then some of the coolant liquid was replaced with coolant ice, the motor stirrer was restarted, and the temperatures were read from the Beckmann thermometer.

实验时，先调节寒剂的组成使其凝固点低于待测溶液的凝固点～2℃，然后分别在保温瓶和凝固点杯中加入寒剂和待测溶液的冰水，启动搅拌器预冷却2~3小时，接着更换保温瓶中的寒剂冰水，重新启动搅拌器，记录贝克曼温度计读数。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。