As Daihe Coal Mine stope and often face a lack of time for the equipment.
岱河煤矿是衰老矿井，由于受采场限制，常常出现没有时间装面的情况。
There are major parts on the face of maintenance equipment and maintenance and production methods.
还有变脸器具上各大配件的保养与维护以及制作方法。
This article mainly introduces the personal protective equipment for eye and face.
着重介绍了眼面部的个人防护措施。
This article mainly introduces the personal protective equipment for eye and face.
着重介绍了眼面部的个人防护措施。
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