make-up air

• 补偿空气

make-up air的用法和样例：

例句

1. Pressure-compensated air bearings are used on both ends of the trunnion axis.
   耳轴两端各用一压力补偿空气轴承。
2. The purpose of the float-bowl vent is to equalize the effects of a clogged air cleaner.
   浮子室通气孔的效用是补偿空气滤清器阻塞的影响。