1.
The Research on a Nozzle/Diffuser Valve-less Piezoelectric Pump;
收缩管/扩张管型无阀压电泵的研究
2.
Modeling and Simulation Research of Valve-less Electro-hydraulic Servo System;
无阀电液伺服系统的建模与仿真研究
3.
Simulation Research in Dynamic Process of Valveless Hydraulic Drill;
无阀液压凿岩机动态过程的仿真研究
4.
Study on Dynamic Characteristics of a Microfluidic Focusing System Based on Valveless Micropumps
无阀微流控调焦系统的动态特性研究
5.
Study of Valveless Piezoelectric Micropump Based on MEMS Technology
基于MEMS技术的无阀压电微泵的研究
6.
Simulation and Experimental Validation of a Valveless Piezoelectric Micropump in Parallel with Double Chambers
并联无阀压电微泵的仿真与实验研究
7.
Structural Parameters Studies of Saw-tooth Microvalve in Valveless Micropump
无阀微泵锯齿型微流道结构参数研究
8.
Research on Design, Fabrication and Application of Digital Valveless Micropump;
数字化无阀微泵的设计、制作及应用实验研究
9.
Research on the Development of New Valveless Piezoelectric Pump and Working Noise of Piezoelectric Pump;
新型无阀压电泵开发与压电泵工作噪声的研究
10.
Study on a Valveless Pump Driven by Magnetically Controlled Shape Memory Alloy Actuator;
磁控形状记忆合金执行器驱动的无阀泵的研究
11.
The valve should require no lubrication, and contain no "dead" volumes.
注样阀应无需润滑，阀内要无“死”角。
12.
EVAP Canister Purge Solenoid (Without LDP)
EVAP罐净化电磁阀（无LDP）
13.
LIGHT-DUTY COMMERCIAL GAS NON-DAMPERED WATER HEATER
轻型商用燃气热水器(无节气阀)
14.
no-load electro-magnetic valve of air compressor
空气压缩机无负荷电磁阀
15.
no-load starting electromagnetic valve of air compressor
空气压缩机无负荷起动电磁阀
16.
The Fault Diagnosis System for Thytistors in TCR of Static Var Compensator;
无功补偿装置TCR阀的故障诊断系统
17.
What usually happens is that the spring corrodes to the stem and valve body and becomes immovable.
通常发生的是弹簧同阀杆和阀体腐蚀在一起，变得无法移动。
18.
If Check cannot be loosened by hand, insert a long screwdriver between valve body and Check (see figure 2) .
如果用手无法松开止回阀，则在阀体和止回阀之间插入一把长的螺丝起子（参阅图2）。