existent gum中文什么意思

实际胶质

• existent:    adj. ＝existing. n. ...
• gum:    n. 〔英方、俚〕上帝 (＝God) ...
• astm existent gum test:    实际胶质试验

例句与用法

1. Engine fuels - determination of existent gum
   发动机燃料实际胶质测定法
2. Existent gum in fuels by jet evaporation , method of test for
   用喷射蒸发法测定燃料中的原在胶的试验方法
3. Motor gasoline and aviation fuels - determination of existent gum - jet evaporation method
   车用汽油和航空燃料实际胶质测定法
4. Petroleum products - motor gasoline and aviation fuels - determination of existent gum - jet evaporation method
   石油产品.汽车汽油及航空燃料.胶质含量的测定.喷射蒸发法