secondary conversion的意思|示意

On the energy conversion relationship between primary and secondary, it gets thrust.

根据初次级能量转换关系，得到推力方程。

Secondary distribution cabinets supply power to their respective program control cabinet, frequency conversion cabinet and pump power cabinet.

由各自的二次配电柜为下属各程控柜、变频柜及泵动力柜供电。

Lastly, catalyzing conversion regular combining with the secondary-air injection system is analyzed by test.

第三部分对增加了二次空气的催化转化规律进行了实验分析。