帮个忙,谢谢各位了? 姑且猜是压力表安装的要求吧: the gauge case mounting feet, if applicable, will ensure clearance between the pressure relieving back and the mounting su**ce. su**ce猜它是su**ce 压力表安装引压管时,如可以,需确认压力缓冲板和安装表面的间隙。 不能确认pressure relieving back 的含义,也许是缓冲隔膜一类的东西?查看更多