elevator piston effect

The hoist equipment causes piston effect when moving up and down in the vertical shaft, and leads to frequent change of flow filed and pressure field around the hoist.

研究结果表明:在罐笼运行期间,由于空间受限而引发活塞效应,井筒内压力发生瞬态变化,造成通风系统的压力波动,导致气流运动的动态改变,对通风系统稳定性有一定的影响。

This paper analyses the piston effect problem in dellling shaft sinking method and its detriments.

本文分析了钻井法凿井中所出现的钻井活塞效应问题及带来的危害。

The piston effect caused by train traveling in tunnel has significant influence on the air flow in the tunnel.

列车运行时的活塞效应对隧道内空气的流动特性有显著的影响。

The systematic error analysis of synthetically measuring the angle & width of trapezoid piston rings is carried out, and testing results of the accuracy and reliability of this measuring instrument are presented.

对梯形活塞环梯形角度及基圆高综合测量方法进行了系统的误差分析 ,并给出了仪器精度及可靠性指标的测试结

Piston Effect of Elevators in High-rise Building and Analysis of Smoke Control

高层建筑电梯活塞效应及烟气控制分析

elevator capture

电梯专用电梯按钮无效

centre plunger hydraulic lift

柱塞直顶式液压电梯

Squeezed Effect and Coulomb Blockade Effect in Mesoscopic Circuit;

介观电路的压缩效应与库仑阻塞效应

Electric Field Gradient Effects in Anti-plane Crack Problems of Piezoelectric Ceramics;

压电陶瓷反平面裂纹问题中的电场梯度效应

Kaiser effect

凯塞(Kaiser)效应

Joule-Thomson Effect of Berthelot Gas;

伯塞活脱气体的焦耳——汤姆逊效应

Study on the Piston Failure by Finite Element Analysis

有限元计算在活塞失效分析中的应用

The Study of Entropy-weighting Method on Apportion the Compensation Benefit of Cascaded Hydropower Stations;

熵权法在梯级电站效益补偿分摊中的应用研究

Cumulative effect of water environment of existing cascade stations on the upper Yellow River

黄河上游已建梯级电站的水环境累积效应

Quantum Effects in Mesoscopic RLC Circuit under Eigenstate of Ladder Operator

阶梯算符本征态下介观RLC电路的量子效应

Effects of gradient disorder on persistent currents in two-dimensional mesoscopic rings

二维介观环中持续电流的梯度无序效应

CUMULATIVE EFFECTS OF WATER TEMPERATURE BY CASCADE HYDROPOWER STATIONS BUILT ON UPPER AND MIDDLE REACHES OF THE WUJIANG RIVER

乌江干流中上游水电梯级开发水温累积效应

Internal combustion engines--Piston rings--Keystone rings and half keystone rings

GB/T14223-1993内燃机活塞环梯形环和楔形环

Steady-state Thermal Analysis of Functional Gradient Materials as Thermal Barrier Coating of Engine Piston;

梯度热障涂层活塞的稳态热分析研究

Simulation of a Two Stroke HCCI Free Piston Linear Alternator

变压缩比下自由活塞式内燃发电机的效率分析

Simulation Research on Train-induced Piston Effect in Subway Tunnels with and without Shaft

地铁隧道带与不带竖井列车活塞效应模拟研究

plunger type undervoltage relay

活塞式欠电压继电器