比重瓶
拼音：bǐ zhòng píng英文解釋：
【化】 picknometer; picknometer,pycnometer; picnometer; pycnometer【醫】 picnometer; pycnometer; pyknometer; specific gravity bottle
specific gravity flask
【醫】 picnometer; pycnometer; pyknometer; specific gravity bottle
specific gravity flask