The definition, categories, applications, additives of environmental friendly lubricants and its development status inside and outside China were summarized. 综述了环境友好润滑剂的定义、种类、应用、添加剂及国内外发展现状,介绍了生物降解试验方法的定义、种类以及生态毒性试验方法。
This simulation system can provide friendly GUI, intuitively show status of the signal equipment and train tracking, calculate the tracing interval time of the trains, and draw the curve of the train operation. 系统提供了友好的人机交互界面,直观的显示了信号设备和列车运行状态,并计算出列车追踪时间间隔,绘制了列车运行曲线。
Through a series of user friendly menus, callers can obtain shipment status information. 通过一系列的用户友好的菜单,呼叫者可以获得装运状态信息。
Friendly intercourse and contradictory conflict - the status of the tribal crew from the time that the other nationalities took their root in the borderland to the time before liberation; 友好往来与矛盾冲突&外族扎根边疆后至解放前各族群的地位;
However, India had to strengthen its friendly relationship with America for its superpower status in international politics. 美国在国际政治中举足轻重的地位使印度仍需要积极发展与美国的关系。