Temperature coefficient of density means ___.
A、theratioofdensityatdifferenttemperatures;
B、theratioofdensityofpetroleumatdifferenttemperatures;
C、thechangeofoildensitywhenchangeoftemperatureis1°Catstandardtemperature;
D、therateofchangeofoildensitywhenchangeoftemperatureis1°Catstandardtemperature.
发布时间：2025-09-21 10:41:08
