Aided with computer, the intelligent well control system monitors and the real-time controls are used to control back pressure of the drilling well head.
智能井控系统是应用计算机对钻井井口回压进行监测和实时控制并采用计算机电液比例控制的系统。
The Fairchild Model 10BP Back Pressure Regulator is an excellent choice for applications which require high precision control of back pressures and relief pressures.
飞兆半导体模型10BP的回压阀的应用，是需要背的压力和救济的压力控制精度高的最佳选择。
The hospitals had cut way back on the large amounts of pain-killing drugs usually given during and after surgery that were used primarily to control blood pressure, not pain.
这些医院削减了原本大量使用的止痛药，这些药通常在手术中和手术后都使用，主要是用来控制血压而不是止疼。
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