| 释义 |
比重瓶1. a pycnometer比重瓶n.pycnometer【物】比重瓶比重瓶picnometer; pycnometer; pyknometer比重瓶picnometer， pycnometer， pyknometer比重瓶pycnometer; picnometer; pyknometer比重瓶pycnometer， picnometer， pyknometer比重瓶pyknometer， picnometer， pycnometer比重瓶specific-gravity bottle (fla |