磨坊主都往自己磨里注水.Every miller draws water to his own mill.注水驱油是油田中后期的重要采油手段.Water flooding is the main method to enhance oil recovery.油田注水系统是油田地面工程的五大系统之一.Water injection system is one of the five systems in oilfield....
英文资格预审文件每份1000元(人民币),或125(美元),现金或银行支票支付,恕不退款.Asetpre - qualification documents in English a - refundable payment of RMB 1000 or US $ 125 in cash or cashier's check.累积其捐献达到美金250, 000元或者更多者才有资格成为阿奇?柯蓝夫协会捐赠人.Donors who...