The paper mainly expatiates the research contents, working principles and technical features on the base of introduction of vacuum magnetic starter with flame-proof bicircuits, thus providing an effective way of safety production to popularize the application of underground water pumps and self-sucked pumps in both medium and small coal mines.
本文在介绍双回路真空磁力起动器主要用途基础上,重点阐述了研究内容、工作原理与技术特点,对中、小煤矿的井下水泵和自吸水泵的推广应用提供了安全生产的有效途径。
This Paper reviews the research works of the second absorption heat pump during the past ten years and points out the developmental tendency of the second absorption heat pump.
介绍１０年来对第二类吸收热泵的研究情况，说明第二类吸收热泵的发展趋势。
The influence of the difference between reverse segment and clockwise rotating segment(ΔL) and rotational frequency of the shaft on the reverse pumping brought by the surface effect,and the influence of rotational frequency of the shaft on the reverse pumping brought by the structure effect.
分析了油封唇口表层材料弹性皱纹的反旋段和顺旋段的差值(ΔL)以及轴的转速对表面效应引起的泵吸率的影响,以及转速对结构效应引起的泵吸率的影响。
The semi-spiral suction chambers of single and double suction pumps are designed respectively.
0作为编程语言,在ObjectARX 2000环境下开发成功了用于单吸泵和双吸泵半螺旋形吸水室水力设计的参数化CAD软件。
pump suction head
泵吸收压头, 泵吸收高度
The air pump draws in vast amounts of air
气泵吸进了大量的空气。
lift [suction] pump
吸取泵，吸取抽机，提水泵
mud suction pump
(空气)吸泥机，吸泥泵
self priming pump
自吸泵，自引泵(启动时不用灌水)
Optimization design of structural parameters of rotational flow self-priming pump body
旋流自吸泵泵体结构参数的优化设计
a pump for raising fluids by suction.
通过吸力提高液体的泵。
portable water jacket downdraft submersible pump
便携水套下吸式潜水泵
single-stage self-priming centrifugal fresh water pump
单级自吸式离心清水泵
horizontal single-stage double-suction volute pump
卧式单级双吸蜗壳泵
a suction pump used to remove the contents of the stomach.
移动胃中容量的吸气泵。
Performance Simulation and Analysis of the Absorption-Resorption Heat Pump;
吸收—重吸收热泵的性能模拟与分析
Hydraulic Design and Experimental Study on Self-priming Performance of Self-priming Pump;
自吸泵水力设计与自吸性能试验研究
PUMP ABSORPTION AND LOSSES OF THE OPTICALLY PUMPED FIR WAVEGUIDE LASER
光泵远红外波导激光器的泵浦吸收和损耗
Body structural optimization of rotational flow self-priming pump based on orthogonal design
基于正交设计法的旋流自吸泵泵体结构优化
Yao filter products are licensed, non-liquid pump seals, may idling portable pumps, pump more than30 other specifications.
现产品有瑶池牌过滤机、轴封液下泵、空转手提泵、吸泵等30多个规格。
Some pumps and all vacuum cleaners work by suction.
有些泵和所有真空吸尘器都是借吸力工作的。
Research on the Two Photon Absorption and the Excited State Absorption by Self-Pump-Probe Measurment;
自泵浦激发双光子吸收与激发态吸收的研究