speed control valve of two work speeds  二工进调速阀

adjustable speed control of AC motor  交流调速

engine speed control valve  发动机速度控制阀

Equipment of Speed Control  调速设备

frequency control of speed  变频调速

mixing technology of two-speed  双速搅拌工艺

precise control of speed change  精细加减速控制

slow speed control valve  低速控制阀

speed control of closed loop  闭环速度控制

speed control of DC motor  直流电机调速

Speed Control of Fans and Water Pumps  风机和水泵的调速控制

Speed Control of Motor  马达速度控制

speed control of open loop  开环速度控制

speed control of up-grade  反坡调速

Speed Control Valve  速度控制阀; 调速阀; 速率控制阀

speed control valve spool  速度控制阀滑阀

Speed-control valve  调速阀

telemetering of speed of revolutions  转速遥测

the speed control valve  液压调速阀