type composition meaning in English

活字排版

Testing of mineral oils ; determination of carbon - type composition
矿物油的检验.碳类成分的测定
Standard test method for carbon - type composition of insulating oils of petroleum origin
石油制绝缘油的碳类组分的标准试验方法
Standard test method for determination of hydrocarbon types composition in gasoline by multidimensional gas chromatography
汽油中烃族组成测定法多维气相色谱法
The test conditions and production processing of a new type composition brake shoe are introduced , and the working life is raised a times than iron brake shoe , showed by underground industry test
介绍了新型合成闸瓦的试验条件及生产工艺过程；通过井下工业性试验，合成闸瓦比铸铁闸瓦使用寿命提高一倍。