论文部分内容阅读
为实现我国井下内燃无轨化,我厂、所共同研制了QCZ-90、QCC-90和QCZ-60型三种双向内燃无轨牵引车
In order to realize trackless combustion of underground coal mine in our country, our factory and co-developed three types of bidirectional internal combustion trackless tractor with QCZ-90, QCC-90 and QCZ-60