time of air change的意思|示意

In the expanding process, the coal powder torch's expanding form is varying with the change of time, space, and air flow field.

煤粉火炬在扩张过程中，随时间、空间、空气动力场等的变化，火炬扩张的形式不同。

Methods To detect the time consumed before frequency becoming stable in air and in solution under different temperature. And the time varied with the change of temperature.

方法在传感器体系中，于不同温度条件下测定空白芯片、已包被芯片在气相中和液相中频率达到稳定的时间，和抗原抗体反应时间随温度变化量。

Therefore, air conditioning in use after period of time or when stop change garments according to the must be cleaned.

因此，空调在使用一段时间后或换季停机时，必须清洗。

Through analysis of concentration change with time and space of mian air pollutants, some causes of the change regularity are expounded, being useful for pollution forecasting and control.

通过分析大气中主要污染物浓度的时空变化，阐明形成此规律的原因，对大气污染物的预测和防治具有一定意义。

The results show that (1) with the time change, the traffic has obviously change. (2) the concentration of air pollution and traffic have a close relation.

结果表明：(1)车流量随时间变化明显。路口的车流量以出租车占的比例最大。(2)污染物浓度与车流量有较为密切的关系。

The whole house senses the air, light, sound and wind coming through the living room, which enables you to perceive the passage of time and the change of seasons without going outdoors.

整个房子能感受到穿过客厅的空气、阳光和通风，不用外出就能觉察到时间的流逝和季节的变换。