Terms for subject Compressors containing step

English	Chinese
out-of-step relay	失步继电器
step base	阶梯形基础
step-by-step drive	步进传动
step-down sub-structure	阶梯式基础
step-out rel	失失步继电器
step piston	阶梯活塞
step piston	台阶式活塞
step piston	级差活塞
step-type cylinder	阶梯式气缸
step-up gear	增速齿轮
step-up motor	步进电动机
three-step constant speed control	三级恒速控制