Thursday, April 18, 2024
Friday, April 19, 2024
问题:弹簧薄膜式气动调节阀的膜头风压是否与弹簧压力范围一一对应?...
Saturday, April 6, 2024
Saturday, April 13, 2024
Friday, April 19, 2024
Friday, April 19, 2024
问题:调节阀设计选型时对阀门流通能力的确认原则是什么?...
Friday, April 19, 2024
问题:球阀按阀球的支撑方式可分为哪二类?各有什么特点?...
Thursday, April 18, 2024
Friday, April 19, 2024
Friday, April 19, 2024
Thursday, April 18, 2024
Thursday, April 18, 2024
Friday, April 19, 2024
Saturday, April 13, 2024
Friday, April 19, 2024
Friday, April 19, 2024
Friday, April 19, 2024
Friday, April 19, 2024
问题:什么是调节阀的可调比?一般调节阀的理想可调比是多少?...
Saturday, April 13, 2024
Thursday, April 18, 2024