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矿用密度测井仪.通用技术条件
General technical condition of borehole density logging instrument for mining
价格：￥0.00
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矿用全方位钻孔测斜仪.通用技术条件
General technical condition of all-direction borehole inclinometer for mining
价格：￥0.00
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煤矿用携带型气体测定仪器.通用技术条件
价格：￥0.00
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高分辨自动地电阻率仪通用技术条件
General technical condition for high-resolution automatic earth resistivity instrument
价格：￥0.00
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