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- negative displacement pump 抽吸泵,负排量泵
- Slurry is metered to the tine by a positive displacement pump. 用一台容积泵测量泥浆尖头。
- A variable displacement pump could save energy during the long holding time. 变量泵可在长的保压时间内节省能源。
- Results Gnathion and gonion showed positive displacement on X and Y axes and negative displacement on Z axis. 颏顶点、下颌角点均表现为X、Y轴向的正位移,Z轴向的负位移。
- The wave that causes the region to reach maximum negative displacement exactly at recombination is the fundamental wave of the early universe. 能使该区域于再复合时达到最大负位移的波，就是早期宇宙的基频声波。
- The timing pump is a positive displacement pump set to ensure that product flows through the entire system at a predetermined and acceptable rate. 这种调速泵是一个容积式泵,用来确保产品以确定的可接受的速率流过整个设备。
- Test shows that the system presents satis-factory results in controlling the variable displacement pump of doz-er. 试验结果显示,它对推土机变量泵控制具有较好的效果。
- Test shows that the system presents satisfactory results in controlling the variable displacement pump of dozer. 试验结果显示，它对推土机变量泵控制具有较好的效果。
- Oscillating displacement pump which may achieve a considerably longer trouble-free operation than a conventional diaphragm piston pump. 往复式容积泵，有比传统隔膜活塞泵长的多的无故障运行时间。
- The swash plate variable displacement pump applied to an electro-hydraulic servo system usually induces unstable performance. 摘要电液比例阀控斜板式变量泵应用于液压伺服系统，常造成稳定性不良问题。
- A genetic neural network control method for variable displacement pump of hydraulic dozer with the energy saving purpose is suggested. 摘要提出了一种液压推土机节能用变量泵遗传神经网络控制方法。
- The electro-hydraulic proportional load-sensitive variable displacement pump control the flow and pressure,and make them accommodate with load automationly. 电液比例负载敏感变量泵以其对流量和压力的复合控制，使流量和压力自动适应负载的需求。
- Imported triplex gear pumps, main pump is piston variable displacement pump with load feedback function. 进口三联泵,主泵为柱塞变量泵,具有负载反馈功能。
- Pumps in which displacement is accomplished mechanically are called positive displacement pumps. 用机械方法完成位移的泵称为正位移泵。
- The hose diaphragm piston pumps are hermetically sealed, leakproof, oscillating displacement pumps with a unique technical and economical value. 软管隔膜活塞泵是严密密封、无泄露往复式容积泵，具有独一无二的技术和经济价值。
- Reciprocating Positive Displacement pumps may use plungers with static seals pistons with dynamic seals or liquid diaphragms to achieve their pumping action. 往复式正排量泵可能使用带有固定密封的活塞;带有动密封的活塞;或隔膜来运行水泵。
- The answer to my request was in the negative. 对我的请求的答复是否定的。
- His answer to my request was a negative. 我的请求遭到了他的拒绝。
- Complex variable - displacement pump 复合变量泵
- The tests for hepatitis were negative. 肝炎检查结果是阴性。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
