A model asphalt had been separated into four components: asphaltenes , saturates, aromatics and resins.用四组分法将沥青分为饱和分 、 芳香分、胶质、沥青质.The paper introduces the research on RHJ asphalt emulsifiers cations.介绍了RHJ型阳离子沥青乳化剂的研究过程....
We had to physically wrestle the child from the man's arms.我们只得用力把孩子从那个男子手中夺过来。They taught me to wrestle.他们教我摔跤。He taught his little brother how to wrestle.他教他小弟弟如何摔跤....