relief valve 和safety valve 是一个吗

relief valve 和safety valve 是一个吗 RELIEF VALVE如何读? water relief valve relief valve是什么意思 pressure-relief valve是什么意思 safety thermal-relief 英语翻译c）the test pressure of the separator should lie between the maximum expected operating pressure during a test and the set pressure of the relief valve minus a safety margin of 10%.6.any relief valve setting will be the rated working pre valve port relief valve 中文是 没有币,只好请热心的朋友帮忙了 relief check valve 和 non-return valve 一样么? Double Flap Valve mix valve 怎么翻译Double Flap Valve 和 mix valve 的翻译 2个词 英语翻译double flanged water meter pressure switch with isolating cock pressure gauge with isolating cock double air relief valve with isolating gate valve double flanged dimantiling pieceflanged flap valve Safety liberation和relief有什么区别吗? 请问什么是变送器?英文里用的阀门GLOBE VALVE .和BUTTERFLY VALVE 有什么区别? REGULAR bore ball valve和full bore ball valve是什么阀门 请问机械加工中relief cut和threadrelief cut 和thread relief 指的是什么呢?