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際密封效果差的原因,針對固定擠壓墊的結構進行了改進。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