Bare shaft, lever-lock flow control handle, worm gear operator, electric and pneumatic actuators.
裸轴, 水平杠杆固定流量控制手轮, 蜗轮操作装置, 电动和气动驱动装置.
互联网摘选
One of the prevalent methods in traffic control is ground holding based on traffic flow management.
交通流量管理的地面等待策略是当前我国空管工作中实际应用的一种方法.
互联网
