And some minutely crystalline varieties, such as flint, may be opaque and of a waxy luster.某些细小的结晶变种, 如燧石, 可能是不透明的,并具有腊样的光泽.The flatting mechanism of low luster paint of organic solvent was introduced.介绍了有机溶剂型哑光涂料的消光机理.T...
Stallone wants to break away from his action-hero image.史泰龙想要摆脱动作明星的形象According to Stallone , his was not a happy childhood.据史泰龙回忆, 他少年的时候并不愉快.The film that put Stallone on the action hero map.这部电影把史泰龙推上了动作英雄的行列....
The geomagnetic field varies continuously .地磁场不断地发生变化。The geomagnetic field varies continuously.地磁场不断地发生变化.Electric compass is a sensor used to determine direction with the help of geomagnetic field.电子罗盘是一种利用地磁场来测量方位的传感器...