低产低效
Low yield and poor benefit
inefficient and low-yield
低产低效井
Low produce and effect well
低产低效林
southeast prefecture guizhou province
低产低压
Low Production and Low Pressure
低产低液油井
Low-productivity and Low-liquid Oil Wells
产品产量的优化组合
Optimization combination of product quantity
产品品类选择准则
Product class’s choice criteria
产品品牌差异
product brand differentiation
产品品质及经济效益
quality and economical benefit of a product