旋转机械故障
rotating machinery fault
rotating mechanical failure
rotary machine faults
rotation machinery fault
增强旋转机械式接合
enhanced rotary mechanical splices
旋转机械振动
rotating mechanical vibration
旋转机械振动监测
vibration monitoring and testing of rotary machine
报时机械装置
time indicating mechanism
接触式干运转机械密封
contacting dry running mechanical seal
自动机械锁紧装置
automatic mechanical latch
自落机械装置
free-fall release mechanism