不过，生物柴油工业最近以来一直处于惨淡经营状态，由于需求量有限，很多厂房处于闲置状态。
Yet the biodiesel industry has been battered recently, with many plants sitting idle for lack of demand.
采油工程措施规划与开发规划不同，它是以优化措施工作量和优选候选井为目的。
Production engineering measure planning is different from development planning. It is aimed at optimizing measures workload and selecting candidate wells.
本发明属电器产品，主要用于石油工业系统的站井产液量的测量。
This is a liquid volume quantity survey device for surveying station of the oil industry.
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