常見例句Determination of density by means of an air pyknometer. 密度的空氣比重瓶測定法。Part 3: determination of density by liquid displacement pyknometer 第3部分:用液躰置換比重計法測定密度Plastics -- Methods for determining the density of non-cellular plastics -- Part 1: Immersion method, liquid pyknometer method and titration method 塑料.;非泡沫塑料的密度測定方法 返回 pyknometer