資料來源 : pyDict

比重瓶

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

Pycnometer \Pyc*nom"e*ter\, n. [Gr. ? dense, compact + -meter.]
   (Physics)
   A specific gravity bottle; a standard flask for measuring and
   comparing the densities of liquids. [Also written
   {pyknometer}.]