主油缸 meaning in Chinese

master cylinder

Improvement of cutting machine main cylinders hydraulic same speed circuit
对剪板机主油缸液压同步回路的改进
Automotive parts - reservoir seals for hydraulic brake master cylinders using a non - petroleum base hydraulic brake fluid
汽车部件.使用非石油基液压制动液的液压制动主油缸用储油箱密封件
Automotive parts - diaphragm gaskets for hydraulic brake master cylinder reservoirs using a non - petroleum base hydraulic brake fluid
汽车部件.使用非石油基液压制动液体的液压制动主油缸储油箱用膜片衬垫