s200

It mainly introduces the failure diagnosis and elimination of travel unit of S200 tunneling machine applied in mixed coal-rock drift and coal-rock drift .

着重介绍半煤岩巷及煤岩巷使用的S200型掘进机行走部的故障诊断及排除方法。

Russian investigators sifting through wreckage found by ships trawling the crash site said they had a piece of what appeared to be a S200 surface-to-air missile .

正在察看搜索于失事地点的船只打捞上来的证据的俄罗斯调查人员说，他们找到了一块似乎是S200地对空导弹的残片。