关于preventer的百科

• blowout preventer造句怎么写

• Allsparepartsoftheblowoutpreventerarekeptinthatroom.Ifthecontainmentvalvefails,BPmaytryinstallingablowoutpreventerontopoftheexistingone.Outsidetheriserareseveralhosesandsmallerpipesforrecirculatingthesyntheticmudandcontrollingtheblowoutpreventer.Suit...
• 2017-04-2221454