以七台河矿区煤矸石为原料，通过改性药剂选择试验和橡胶填充试验筛选最佳表面改性剂。
Using coal gangue of Qitaihe as raw material, the best surface medication agent was screened through the test of medication choosing and rubber filling.
黑龙江鸡西、鹤岗、双鸭山和七台河四大主要矿区有矿井42个，其中70%都是高瓦斯矿井。
There are 42 mine Wells in four major mine areas, Jixi, Hegang, Shuangyashan and Qitaihe, in Heilongjiang province, China, 70% of which are high gas mine Wells.
黑龙江鸡西、鹤岗、双鸭山和七台河4大主要矿区有矿井42个，其中70%都是高瓦斯矿井。
There are 42 mine Wells in four major mine areas, Jixi, Hegang, Shuangyashan and Qitaihe, in Heilongjiang province, China, 70%of which are high gas mine Wells.
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