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- pressure differential recorder 压差记录仪
- Connect wire to pressure differential switch. 连线至差速压力开关。
- Open VB to reestablish first check valve differential pressure. Close VB. Record pressure differential. 开启VB，重新恢复第一止回阀的压差。关闭VB。记录压差。
- Purpose: To test operation of pressure differential relief valve. 目的:检测压差安全阀的运行。
- Adjust balancing valve until pressure differential gauge reads pressure drop required for desired flow rate gpm. 调整平衡阀直到压差表读出压降符合所要求的流量（加仑/分钟）为止。
- The combined action mechanism of the pressure and pressure differential in casing damage. 油田套管损坏的压力与压差联合作用机制。
- Connect hoses, vent meter and read pressure differential in accordance with instructions furnished with meter. 连接软管,排放仪器气体,按照仪器配置的说明书读出压差值。
- If pressure differential continues to decrease (approaching "zero"), shutoff #2 is reported to be "leaking". 如果压差继续降低(接近"零")，则说明关闭阀2号"泄漏"。
- Maximum pressure differential required for valves with lever actuators should not exceed the limits listed. 采用杠杆执行器要求阀门的最大压差不能超过下表所列的极限。
- Observe the pressure differential gauge. If there is a decrease in the indicated value, the No. 1 check valve is reported as "leaking". 观察压差表。如果读数没有减少,则1号止回阀报告为“泄漏”。
- Breakaway torque is the total of the torques resulting from bearing friction and seat/disc interference friction at a given pressure differential. 断开扭矩是轴承摩擦力和阀座;蝶板相互影响的摩擦力,在已知压差状态下所产生的扭矩和力。
- The kinetics of the thermal decomposition of ammonium perchlorate (AP) is investigated by the pressure differential thermal analysis (PDTA). 用压力差热分析(PDTA)研究了高氯酸铵(AP)在高压下热分解动力学。
- Worse, the trigger pull at each of these stages may vary as much as 6 lbs. in pressure differential, detracting from accuracy. 在这些级数之间每一次扣动扳机力度都不太一样，会影响精确度，虽然对于大多数射手来说都不明显。
- If the water roll both sides of the eccentric regulation unsymmetry, can cause the water roller pressure differential, which side to play dirty. 如果水辊两端的公道调度不差称，不离会导致水辊的不张力不平均，印版的侧边不离便当起不净。
- It is evaluated the oxidation properties of 6 hydrogenated base stocks and 5 antioxidants by pressure differential scanning calorimetry. 用加压差式扫描量热仪评价了6种加氢基础油和5种抗氧剂的氧化性能,以克拉玛依石化公司生产的基础油氧化稳定性好。
- Requirements: The pressure differential relief valve must operate to maintain the "zone" between the two check valves at least 2 psi less than the supply pressure. 要求:压差安全阀必须运行以保持两个止回阀之间压差为“零”,或比供应压力低2psi以内。
- NOTE: To prevent premature valve failure it is not recommended that the valve operate in the throttled position with more than 25 ft. pressure differential. 注意：为了避免阀门过早出现故障，建议当压降大于25英尺时阀门不要在节流位置运行。
- With the experimental data of air-water verticle annular flow, 8 pressure differential calculations such as Duns-Ros rnethode etc. are checked and evaluated. 本文以空气-水铅直环空流动的实验资料,检验和评价了丹斯-若斯等八种压差计算方法。
- The cockpit door has built-in ventilation, pressure differential relief, and smoke isolation features. A cabin viewer is installed to provide a view of the cabin area. 该驾驶舱拥有内置通风设备，压强差阀门，烟尘隔离装置等。且安置有舱内观察器以提供舱内视域。
- Indicated pressure differential will decrease slightly. If pressure differential continues to decrease (until the vent opens ) the No. 2 check valve is reported as "leaking". 指示压差将稍微下降。如果压差继续下降(直到排气打开为止),则2号止回阀报告为“泄漏”。
