Abstract: The kinds, structures and catalytic properties of polymer metal catalyst for hydrosilation were reviewed. 文摘: 综述了硅氢加成反应中高分子金属催化剂的种类 、 结构及其催化性能.
水泥是由石灰石制成的.Cement is made from limestone.在白色石灰石和粉灰色石灰石之间是一层薄薄的黏土。Between the white limestone and the greyish pink limestone is a thin bed of clay.周围一堆堆的石灰石,在彩虹一样的斑斓色彩中闪闪发光.Round about , piles of lime - stone glistened in...
The umpire's decision is final.裁判的裁定是不可更改的。We need someone to umpire.我们得找个人当裁判。The boys had an altercation over the umpire's decision.男孩子们对裁判的判决颇有争议....
脱下的种皮,可由筛子上的气吸装置吸除.Hulls may be removed by aspiration on screens.橘子皮可被用作中药.The orange peel can be used as Chinese medicine.皮可斯发布的新图像才叫酷呢.What is cool Pixar releases a new image....