資料來源 : pyDict

真空唧筒,脈搏計

資料來源 : Webster's Revised Unabridged Dictionary (1913)

Pulsometer \Pul*som"e*ter\, n. [Pulse + -meter.]
   1. A device, with valves, for raising water by steam, partly
      by atmospheric pressure, and partly by the direct action
      of the steam on the water, without the intervention of a
      piston; -- also called {vacuum pump}.