drilled footage per day [矿业] 台日进尺
drilled footage per month [矿业] 台月进尺
drilled footage per shift [矿业] 台班进尺
total drilled footage 总钻井进尺
drilled footage per regrinding 磨次进尺
footage drilled 进尺数 ; 钻进总长 ; 钻井进尺
footage drilled per shift 每班进尺
footage drilled per bit 每个钻头进尺
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