收缩器

The signals that make the heart's muscle fibres contract come from the sinoatrial node, which is the natural pacemaker of the heart.

驱使心脏肌肉纤维收缩的信号来自于窦房结，它是心脏天然的起搏器。

The valveless pump has inlet and outlet with tapered tube and does not need control of valves. The flow rectification of the valveless pump can be realized based on the nozzle/diffuser action. The differential SMA actuator controlled by alternative current makes the baffle of the valveless pump reciprocating motion.

该无阀泵具有锥形入口和出口而不需要阀门控制，单方向泵流是靠锥形入口和出口的收缩和膨胀作用实现的，差动式形状记忆合金执行器在交变电流的控制下使无阀泵的挡板往复运动。

A hormone secreted by the posterior lobe of the pituitary gland that constricts blood vessels, raises blood pressure, and reduces excretion of urine.

用来治疗高血压和心律不齐的药物；通过阻止神经系统肾上腺接受器来减少心脏收缩力的药物。

Machinery and Equipment: baked me, the tunnel furnace, heat shrinkable packaging machines, automatic sealing machine, high temperature resistance furnace, tin melting furnace, water POON counter, lines, car, cart, UV; electrothermal Equipment: stainless steel heating pipe, titanium tube, quartz tube, Teflon tubes, electric lap, UV lamp, silicon carbon rods, cast aluminum heater, high temperature of the radiation, the first single, high-temperature lines; plating products : PVC plated shafts, titanium basket, linked to a titanium, titanium steam pipe, the anode, filters and other machinery at a value of whole plant equipment to undertake the planning, design, production, installation, commissioning and maintenance operations, welcomed the overwhelming majority of customers来人calls Advisory negotiate!

机械设备：烘箱、隧道炉、热收缩包装机、自动封箱机、高温电阻炉、熔锡炉、水濂柜、流水线、台车、推车、UV等；电热器材：不锈钢加热管、钛管、石英管、铁氟龙管、电热圈、UV灯管、硅碳棒、铸铝加热器、高温辐射管、单头管、高温线等；创值机械同时承接整厂设备规划、设计、生产、安装、调试、维护业务，欢迎广大客户来人来电咨询洽谈！

This article have a research on its hydraulic characteristic during high head above the weir,huge discharge in its different contraction ratio of generator through theory analysis and experimental comparison.

本文采用理论分析和试验比较的方法就该种消能工的起旋器收缩断面大小发生系列变化情况下，其在高水头，大泄量应用时所产生的一些水力特性变化进行探讨和研究。

In this work, we investigate fluid mixing in zigzag micromixers with 90-degree bendings; both uniform cross-section and periodically divergent-convergent channels are considered.

中文摘要本研究探讨流体在锯齿形具90度转弯流道之混合器混合现象；比较等截面流道与周期性扩张收缩流道中之流体混合。

The car's ultrasonic sensors check for obstacles, and software starts and stops the engine, controls the brakes and hazard-warning flashers, and folds the wing mirrors in and out.

车上配置的超声波传感器对路障进行勘测，控制软件对发动机的运行和停止进行控制，同时控制着制动和事故报警闪鸣器的开启，伸展和收缩后视镜。

A novel kind of Ordination-Fuzzy min-max neural network based on non-metric multidimensional scaling was proposed to solve the classification problems of unlabeled input pattern. Firstly, all the input patterns were sorted by MDS to get their similarity measures. Then these measures were used to supervise the following expansion and contraction stage of hyperboxes for classification. OFMM had improvements both in the validity of unlabelled patterns classification, and the network structure and training time.

该模型首先利用非刻度—多维度收缩法对输入的所有样本进行了排序，然后获得样本间的相似性测度值，并利用该相似性测度值指导随后的分类器超盒扩张与压缩过程，从而使得该模型不仅提高了对未标记样本进行有效分类的性能，而且无论是在网络结构方面，还是在训练时间方面都有所改进。

Moreover, it contains advanced surfacing, extensive data translators for sharing and reusing engineering data, mechanism design for moving assemblies, shrinkwrap and simplified

而且，它还包含了高级曲面，用来共享和重复使用的工程数据的广泛的数据转换器，用来移动组件的机构设计，收缩范围和，协助数据重复使用的模型检查，输入数据的输入数据专家和创建动画的设计动画。

The thrust compensator consists of a spring loaded stem nut that will absorb any expansion or contraction caused by temperature fluctuations without affecting the position of the closed valve stem.

这个推力补偿器有一个弹簧支撑的阀杆螺母，可以来吸收因为温度波动造成的收缩和膨胀，而不影响阀门的关闭位置。

He and Nina moved to California and lived at 2005 Ivar Street, Apt.

他和Nina搬到加州，并在2005年伊瓦尔街，公寓生活。

Droperidol （ potently inhibits transfected HERGchannels and this is the probable mechanism for QT prolongation.

氟哌利多有效地抑制了转染的 HERG 钾通道，可能是 QT 间期延长的机制。