... metering band 计量卷尺 metering block 配量阀组 metering chamber 按量分配室 ...
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Qinghe oil Production Plant reconstructed the airtight gathering and transportation technology at southern metering block station in the northern oil field in 2004 and has obtained the tangible e...
清河采油厂2004年在北区油田南块接转站进行密闭集输工艺改造，取得了明显的效果。
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