流电的

The results are as follow:(1) In static status, the velocity of jet flow shows a symmetry distribution through central axis of enclosure.

结果表明，腔体静止时，射流速度沿腔体中心轴对称分布，腔体中心轴上的速度最大，两侧流速逐渐减小，近壁处为零；腔体转动时，在哥氏力的作用下，射流中心发生偏转，流场相对于腔体中心轴不再对称分布，腔体中各点处的流速分布随角速度而变化，压电射流角速度传感器利用这一特性敏感角速度。

The control effect of electromagnetic force on cylinder wake, lift force and drag force, which was caused by alternating current, is related to its frequency.

而交流电所产生的电磁力对于绕流涡街、升力、阻力的控制作用，则与所使用的频率有关。

The single edge-triggered flip-flop uses low swing voltage delay chain generating the operation transparency window for reduces the power consumption.

此单缘触发正反器使用了低电压的时脉震荡延迟电路，来产生操作的触发波形和电晶体叠加技术，来达到减低漏电流的低功耗设计。

Thus, in the last part of thesis, functionalized nanoparticles that are capable of selectively concentrating calcium ions from complex samples were employed for the sample treatment prior to electrodeless/sheathless ESI MS analysis.

本论文最后一部份是设计了一个实验，利用具有功能性的磁性铁奈米粒子先专一浓缩分离样品中的目标物-钙离子，再配合本论文中所设计的无鞘流界面进行电喷洒质谱分析。

To meet the above requirements and exhibit low leakage current as well as good reliability, the replacement of high-??

为了满足以上的需求并获得较低的漏电流及较高的可靠度，利用高介电常数材料

6 Software was used to simulate the flow field during linear electromagnetic stirring, and the influence of the current parameters in the stirrer on the flow behavior of the molten steel were investigated.

利用ANSYS5.6软件对单侧线性电磁搅拌作用下的流场分布进行了数值模拟，分析了搅拌器的电参数对钢液流动状况的影响。

The electrical resistance of control leaves was about 5.6×10~5 ohms / cm along the longitudinal axis of the leaves.

测定开始后的30min内，叶片的组织电阻及灌流流出液的电导均可恢复到对照值。

Current collecting performance is urgent to be improved for high-speed railway and better relationship between pantograph and catenary is the key to this problem.

提高受流质量是铁路提速中亟待解决的问题，改善受电弓和接触网之间的关系是解决这一问题的关键。

MSP430F169 microcontroller was the core components of control and measurement function of an electromagnetic relay characteristic parameter tester. The tester also included DC power module, power amplifier module, constant current source module, keys, and digital tube display module. The tester could test the data of 943-1C-12DS electromagnetic relays including the minimum pull-in voltage, maximum release voltage, relay coil voltage rating when the pull-contact time, release time as well as the contact value of the contact resistance. The system could complete automatic measurement parameters to achieve all the basic requirements of design. And all of the test data was displayed through the 74HC573 digital tube.

摘 要：以MSP430F169单片机作为控制和测量的核心部件，辅以直流稳压电源模块、功率放大电路模块、恒流源模块、按键和数码管显示模块等组成一个电磁式继电器特性参数测试仪，完成对943-1C-12DS电磁式继电器最小吸合电压、最大释放电压、继电器线圈电压为额定值时的触点吸合时间、释放时间以及触点接触电阻值的测试，该系统能够实现成套参数自动测量，所有测试数据通过74HC573数码管进行显示。

Through analyzing the technology requirement of slide bar material for high-speed rail vehicle pantograph,this article studies the current carrying friction mechanism between the slide bar and conductor,introduces the characters of present four kinds of slide bar.

文章从高速列车受电弓对滑板材料的技术要求着手，仔细分析研究了滑板和导线之间的载流摩擦机理，并对现在的四类滑板特性分别进行了介绍。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。