Development proposals of isoprene rubber in China were put forward.结合我国的实际情况,提出了发展我国异戊橡胶的几点看法.Isoprenoid ( terpene ): Class of organic compounds made up of two or more structural units derived from isoprene.类异戊间二烯化合物(亦称 ...
In printing, a duplicate letterpress plate made from an original by electroplating.在印刷技术中, 一种用电镀方法从原版复制成的印刷版.Positive line work and letterpress must be opaque.阳像线划原图和注记必须是不透明的.Furniture: Letterpress spacing materials use...
His excellency the President will be waiting for you in the hall.总统阁下会在大厅等你。I am reluctant to trust anyone totally, Your Excellency.我不想完全相信任何人，阁下。Good evening, your Excellency.晚上好，阁下。...