常見例句The article analyzes the reasion of poor effect for cuppy fixed dummy block in aluminium alloy extrusion press. 綜合分析了杯碗式固定擠壓墊實(shí)際密封效果差的原因,針對(duì)固定擠壓墊的結(jié)構(gòu)進(jìn)行了改進(jìn)。Grasps the electrohydraulic servo valve the working condition and opens the mouth to control the expiration reasion,adopts correct measure effective preventing. 掌握電液伺服閥的工作情況及開口控制失效原因,采取正確措施有效的防止。 返回 reasion