Driving Gear
传动装置
主动齿轮
驱动机构
传动齿轮
驱动齿轮
牵引主动齿轮
主动轮
半圆锁
Gear driving of ball mill
positive infinitely variable driving gear
conversion from horizontal adit driving to main tunnel driving
accelerometric governor
additional air governor
Administrative Functions of township governor
air compressor governor
air governor
空气调节器
空气调速器
空气调整器
自动空气调节器
送风调节器
automatic pump governor
automatic speed governor