通风机的英文：
fanner
ventilator

参考例句：

propeller fans exhaust air through holes in the wall
螺旋式通风机从壁孔中排出空气。

The pit is ventilated by a steel fan.
矿井中用钢制通风机来保持空气流通。

fanner是什么意思：
n. 摇扇人,电风扇,通风机
ventilator是什么意思：
n. 通风机,送风机,换气扇

This is a room with good ventilation.
这是个通风良好的房间。

There is not the slightest form of ventilation.
根本没有任何通风设备。

The pit is ventilated by a steel fan.
矿井中用钢制通风机来保持空气流通。

Measures to increase ventilation will rectify the problem
增进通气的措施会纠正这种情况。

The barrage obviously influences the ventilating state.
阻塞对通气孔的通气状态产生明显影响。