换能器

Heat transfer between ingot and mold is then intensified by the quickened flow velocity of Al melt. As a result, the initial solidifying point on the ingot surface in mold moves upwards to decrease the height of contact zone between the melt and mold so as to improve the surface quality of ingot.

铝熔体流动速度的加快能增强石墨环与铝熔体之间的换热，使结晶器内铸锭表面初始凝壳点位置上移，减小了铝熔体与结晶器的有效接触高度，提高了铸锭的表面质量。

The permanent joint is formed such that it extends around at least both of the through-holes (19, 20, 21, 22) for forming a connection between the connection block (17, 18) and the outer heat transfer plate or end plate that is resistant to torsional stress.

永久连接结构至少围绕两个通孔（19，20，21，22）延伸，以在连接块（17，18）和外部传热板或端板之间形成抗扭转应力的连接，因此，带外螺纹的连接装置能拧入板式换热器而不会使永久连接断裂。

The results indicate that: 1 the system can directly show the activity of fluid field and satisfy a certain need; 2 The distribution of particle concentration in pipe is unequality and the unequality degree varies with the cent of volume and regime fl...

试验结果表明：1该系统能直观显示被测流场的运动状态，满足一定流场的测量要求；2颗粒在管内的浓度分布是不均匀的，随颗粒的体积分率和流型的变化而变化；3所得的试验结果能够解释液-固流化床换热器的强化传热和防除垢机理。

Although, PI controllers are widely used in the HVDC systems, they have high sensitive responses to random disturbances , low robust performance, and can not solve some problems in power systems, such as unmodeled dynamics , nonlinear uncertainties.

目前，在高压直流输电系统换流器控制应用领域中常用的控制方法还是经典的PI控制，对干扰影响反应强烈，鲁棒性能差，不能解决电力系统中的未建模动态和非线性动态不确定性等缺点。

It is generally agreed that expanded-connecting method can't be used for aluminizing tubular because of its higher hardness.

一般认为，渗铝管用于管式换热器是不能采用胀接的，其理由在于管子渗铝后，渗铝层硬度很高。

From the last century 80's hydraulic wrench in the system and the North China Huaneng Power Plant OFTA all started, after two decades of hard work, my company sold products to several dozens of categories, such as controllable torque tools , valve grinding machine, portable hole processing equipment, pipe beveling machine, high-energy welding equipment, processing equipment flange, heat exchanger tube repair, hydraulic tool equipment, such as ultra-high, with more than thirty foreign professional firms in China the exclusive authorized sales and after-sales service.

从上世纪80年代液压扳手在华能系统及华北电管局各电厂的应用开始，经过二十年的艰苦努力，我公司所销售产品发展到几大类数十种，如可控力矩工具、阀门研磨机、便携式孔加工设备、管道坡口机、高能焊接设备、法兰加工设备、换热器管修复、超高液压工具设备等，拥有三十余家国外专业公司在中国的独家销售及售后服务授权。

Increasing the temperature differential and/or pressure allows Stirling engines to produce more power, assuming the heat exchangers are designed for the increased heat load, and can deliver the convected heat flux necessary.

提高温度差和/或压力使斯特林发动机生产更多的权力，承担换热器设计用于增加热负荷，并能提供convected热流必要的。

In principle, the quick controlling of convertors can advance the dynamic behavior of AC/DC system. How to acquire the adequate control signal is the key factor.

HVDC系统的快速、高度可控性，从原理上说明，对换流器附加适当的控制就能有效地提高AC/DC系统的动态特性，其关键是如何得到恰当的控制信号。

Trans-Blot Plus Cell 170-3990 Trans-Blot Plus Cell With Plate Electrodes and Super Cooling Coil, includes 3 gel holder cassettes, buffer tank, lid with power cables, 6 fiber pads, 1 pack blot absorbent filter paper (26.5 x 28 cm, 30 sheets), roller, stirbar 170-3991 Trans-Blot Plus Cell and PowerPac HC Power Supply Accessories 170-3994 Trans-Blot Plus Gel/Cassette Assembly Tray 170-3995 Fiber Pads, 27 x 28.5 cm, 2 170-3996 Blot Absorbent Filter Paper, 26.5 x 28 cm, 60 sheets 170-3997 Stirbar 170-3998 Trans-Blot Plus Roller, 6 wide 170-39 Trans-Blot Plus Gel Holder Cassette With Clamps 170-4990 Trans-Blot Plus Super Cooling Coil 170-4991 Trans-Blot Plus Platinum Anode Plate Electrode 170-4992 Trans-Blot Plus Stainless-Steel Cathode Plate Electrode 170-4995 Trans-Blot Plus Cell Buffer Tank 170-4996 Trans-Blot Plus Cell Lid With Cables 170-4997 Gel Holder Cassette Clamps, for Trans-Blot Plus cell, set of 3 9 规格:说明:运用Mini-PROTEAN II 多道筛选仪,可以快速有效地筛选 40 种不同的抗体或血清,无需把western

转印条件可调，能在很大的分子量跨度上获得最佳转印效果*耐用的板式电极能产生强大而均一的电场，而且电极在槽内的位置灵活可换；不论运行1、2 或3 个转印夹，电极间距可调节到最小以获得最大的场强和转印效率*凝胶支架转印夹保证整个凝胶与印迹膜表面的均衡接触*转印夹的铰链设计能防止凝胶滑动，便于转印夹组装*颜色标记的转印夹及电极板确保在转印槽内的正确定向*特级冷却芯和冷却水循环器进行温度调节―可理想地用于天然酶或高强度转印，或用于延长转印时间时减少缓冲液的损耗*可选择的组装盘是凝胶三明治和转印夹组装的理想选择 Trans-Blot Plus 转印槽能从单向和双向大格式凝胶上均一、高效地转移蛋白―配合使用新推出的 PowerPac HC 电源，多数蛋白都可在1530 分钟内完成转印。

When the program is recompiled, the new name is picked up wherever the symbol occurs in the code.

尽管通过编辑器的查找替换功能也能实现整个变量名称的替换，但也很有可能出现多换或者少换的情况，而在计算机程序中，任何小错误的出现都是不可饶恕的。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。