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coal sampling
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Subject
English
Chinese
electric.
automatic
coal sampling
device
自动釆煤样装置
met.
coal sampling
采煤样
interntl.trade.
coal sampling
system
煤取样制样装置
electric.
mechanical power
coal sampling
equipment
又称
机械采制样装置
electric.
mechanical power
coal sampling
equipment
发电用煤机械釆制样装置
tech.
sampling plan of coal seam
煤层取样平面图
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