他在楼梯上滑了一跤,踝关节脱臼了.He slipped on the stairs and put his ankle out.膝关节和踝关节必须加以固定——这通常意味着要打上6个星期的石膏。The knee and ankle joints must be immobilized— this usually means up to six weeks in plaster.膝关节和踝关节必须加以固定——这通常意味着要打上6个星期的石膏...
比较不常见的浸蚀多聚物的化学浸蚀物有酸 、 碱.Less common reagents that attack polymers include acids, bases.简要介绍了磁性纳米颗粒 、 硅纳米 颗粒及阳离子多聚物颗粒等的研究进展.The magnetic nanoparticle, silica nanoparticle and poly - cation nanoparticle were introduced bri...
马克思回信给恩格斯说,他的赞誉对自己的鼓励很大.Marx wrote back to say that Engels'praise had greatly encouraged him.马克思和恩格斯科学地预言了资本主义的灭亡.Marx and Engels scientifically forecast the collapse of capitalism.恩格斯懂好几门外国语, 例如英语 、 法语和意大利语.Engels ...