資料來源 : pyDict

鍋爐的爆炸防止裝置,電動水量指示器

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

Hydrostat \Hy"dro*stat\, n.
   A device, usually electrical, for indicating or regulating
   the height of water in a reservoir or receptacle.

Hydrostat \Hy"dro*stat\, n.
   A contrivance or apparatus to prevent the explosion of steam
   boilers.