无阀的

The experimental results indicate that the operation principle and design method of the valveless pump are feasible.

原理样机试验结果验证了该种无阀泵的运行机理和设计方法的可行性。

The operation principle, structure and control method of differential SMA actuator, the one-way flow mechanism and structure design of the valveless pump are analyzed.

该文分析了差动形状记忆合金执行器的运行原理、结构和控制方法，无阀泵的单向泵流机理、结构和设计方法。

Specifically for the integrated delivery system customized Vmp, is the world's most advanced precision stepper motor driven valveless metering pump.

特别是对综合传输系统定制的峰值电压，是世界上最先进的精密步进电机驱动无阀计量泵。

Through optimizing the parameters of the impact mechanism and using of the result above, the optimum result on the impact mechanism is obtained, which has had practical consult value to design valveless hydraulic drill.

利用仿真研究的结果，对影响冲击机构的物理参数和结构参数进行了优化，得出了优化结果，对于无阀液压凿岩机的设计具有实际参考价值。

Depending on intersecting channels and electro osmotic pumping, valveless switching of solvent flow is realized and the injection volume is 30 pL.

还描述了交叉点进样的方法，利用交叉形状的沟道和电场作用下的电渗流实现了溶液的无阀转换，进样体积为30pL

At present, the valveless hydraulic drill is wildly used in many fields. Comparing with the development of the abroad and analyzing the native practice, we take the valveless hydraulic drill that hasn't formed mature theories as the object and make the study with the technology of computer imitation. The main contents of the study are as follows. 1.The accumulators of the hydraulic drill have been carefully analyzed and studied.

目前，液压冲击机械在各个行业中得到迅速推广应用，本文在研究国内外现状的基础上，选择在国内仍处于开发阶段，设计理论还不是很成熟的无阀液压凿岩机为研究对象，运用计算机仿真技术对其进行了研究，主要内容如下：1。

The valveless micropump consists diffuser/nozzle elements, driven by an electromagnetic/ mechanical driver. Only dry batteries are needed.

该微型泵体采用无阀式的扩散管/喷嘴结构，由电磁—机械方式驱动振膜的振动，用干电池作电源。

Thus, a decoupling chamber pressure control system was designed and installed at the end of the tailpipe of a valveless self-excited pulse combustor. The relative pressure in the decoupling chamber was controlled from about -10 kPa to 10kPa through a blower, and the influence of pressure variation on the heat transfer in tailpipe was investigated.

在一台无阀自激脉动燃烧器尾部建立了去耦室压力控制系统，通过调节引风机前的阀门开度来改变去耦室内部压力即尾管出口压力大小（调节范围-10～10 kPa），实验研究了去耦室压力变化对脉动燃烧器尾管传热的影响。

The novel device integrates two important microfluidic phenomena, including hydrodynamic focusing and valveless flow switching inside multi-ported micro-channels. In this study, a simple theoretical model based on "flow-rate-ratio" method is first proposed to predict the performance of the device. Based on these data, a pre-focused 1xN flow switch is designed and fabricated using micromachining techniques.

本专题中的微流体晶片同时涵括了以下两种很重要的微流体现象--(1)水力预集中（hydrodynamic pre-focused ）以及(2)无阀式开关的切换方式，并在同一平面上作流向控制，以便将相同样品注射至不同或相同之出口槽(output-port)以连接至不同的微流体分析晶片，以达成多功能连续式的样品进料功能。

Speed transmission box and the valve shaft seals can not be connected without leakage of the whole.

变速传动箱体与阀轴密封处不可连接成无泄漏的整体。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。