单词	petrogas
释义	petrogas ['petrә,^æs] 液体丙烷
随便看	backpressure governor back pressure governor backpressure manometer back-pressure manometer back pressure manometer back pressure multi-effect evaporator back pressure of steam trap back-pressure operation backpressure operation back pressure operation back pressure regulating valve backpressure regulation back pressure regulator backpressure regulator back-pressure regulator back-pressure regultor back-pressure-relief port back pressure relief valve back pressure return back-pressures backpressures back pressure sensor back-pressure sensor back pressure spring valve back pressure steam ptcy ptdh ptdy ptedyz pten ptfg ptgd ptgl ptgm ptgn 46023 46024 46025 46026 46027 46028 46029 46030 46031 46032