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.The experiment results showed the two boracic surfactant can be used as emulsifiers and antiwear additive.用四球试验机试验了这两种含硼表面活性剂的油膜强度...
《终结者2》的票房最终达到了两亿美元，被认为是收回了影片的制作成本。"Terminator 2" finally made $200 million, which was considered to be the break-even point for the picture.终结者当上加州州长你不感到奇怪?Aren't you surprised the Terminator is the governor of Cali...