The second time, the process simply references the data members and virtual functions.
第二次，进程只是引用数据成员和虚函数。
2
The increasing use of new tools such as computerised virtual design helps cut the cost and length of time needed to bring new models to market, but it is still an expensive process.
像电脑虚拟设计这样的新工具使用的增加大幅缩小了新车型开发的费用和周期。不过这些新工具依然价格不菲。
3
Virtual design and manufacturing for heavy ground vehicles can be used to reduce error in the design process and shorten the lead time greatly for them.