我们徐州矿务局,由于综采设备的引进,在回采速度上已大大加快,这就带来了需经常协调采掘新关系的问题。老的传统性的掘进方式已不能适应综采煤的快速需要了,必须加快掘进进尺,提高掘进机械化水平,从而保证综采面的正常推进。因此,我们于1979年从奥地利、日本等国家引进了若干台掘进机械,其中从日本引进的五台 MRH Our Xuzhou Mining Bureau, due to the introduction of fully mechanized mining equipment, has greatly accelerated the rate of recovery. This has brought about the issue of constantly coordinating the exploration of new relationships. The old traditional way of excavation can no longer meet the rapid needs of fully mechanized coal mining. It is necessary to speed up the progress of excavation and raise the level of mechanization of excavation so as to ensure the normal progress of fully mechanized coal mining face. Therefore, in 1979, we introduced several tunneling machines from Austria, Japan and other countries, of which five MRHs imported from Japan