hydrometer method meaning in English

比重法
比重计法（密度计法）

Standard test method for api gravity of crude petroleum and petroleum products hydrometer method
原油和石油产品api比重的标准试验方法
Crude petroleum and liquid petroleum products - laboratory determination of density - hydrometer method
原油和液体石油产品密度实验室测定法密度计法
Crude petroleum and liquid petroleum products . laboratory determination of density . hydrometer method
原油和液体石油产品.密度的试验室测定.密度计法
Crude petroleum and liquid petroleum products - laboratory determination of density - hydrometer method
原油和液体石油产品.密度的实验室测定.石油密度计法
Standard test method for specific gravity , api gravity , or density of cutback asphalts by hydrometer method
用比重计法测定稀释沥青比重api比重或密度的标准试验方法

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