查询词典 eddy current

Therelationship between the turbulent kinetic energy and its dissipation rate,whichis widely used to parameterize the dissipation rate in turbulence closure models,is found to hold well for both reversing and rotating flows,but with differentcoefficients.Microstructure profiling measurements at two comparative stations (a deepercentral basin and a local shelf break) in the stratified Yellow Sea are analyzed,with emphasis on tidal and internal-wave induced turbulence near the bottomand in the pyenocline.The water column has a distinct three-layer thermohaline structure,consisting of weakly stratified surface and bottom boundary layers anda narrow sharp pycnocline.Turbulence in the surface layer is controlled by thediurnal cycle of buoyancy flux and wind forcing at the sea surface.while thebottom stress induced by barotropic tidal eurrents dominates turbulence in thebottom boundary layer.The maximum level at which the tidally enhanced mixingcan affect generally depends on the magnitude of the tidal current,and it canbe up to 10-15 m in the Yellow Sea.This suggests that,in the deeper regionsof the shelf seas,turbulent dissipation and mixing are very weak at the levelsbetween the near-bottom tidally enhanced layer and the pycnocline.Therefore,these levels provide a significant bottle neck for the vertical exchanges.In theshallow regions,however,the tidally-induced turbulence can occupy the wholewater colum below the pycnocline.A quarter-diurnal periodicities of the turbulentdissipation rate and eddy diffusivity are found at different heights with evidenttime lag.In the relatively flat central basin,the pycnocline is essentially non-turbulent and internal-wave activity is very weak.Therefore,vertical fluxes acrossthe pycnocline decreased to molecular levels.In contrast,internal waves of variousperiods can be always found near the local shelf break.

对强层化季节黄海两对比性站位(分别位于中央海盆区与局地陆坡区)处层化、内波以及湍流混合特征的研究结果表明：1、强层化季节的陆架海水体一般呈现显著的三层热盐结构，在水体近乎混合均匀的上混合层与潮流底边界层之间为强跃层；2、近表层水体的湍流混合强度主要由海表浮力通量的日变化与海表风强迫控制，而在潮流底边界层内，潮混合是水体热量、物质、动量与能量垂直交换的主要机制；3、潮混合影响的深度由潮流大小决定，在黄海，一般可达10-15 m，因此，在水深较深的区域，在跃层与潮混合所至深度范围的上界之间存在湍流混合非常弱的区域，这显著抑制水体内物质的垂直通量，为物质垂直交换的瓶颈，而在水深较浅的区域，潮混合影响范围可至跃层底部，因此物质在跃层以下整个水体中混合非常均匀，当跃层内间歇性强混合发生时，可以产生显著的跨跃层物质输运；4、近底潮致强湍流耗散缓慢地向上传播，底上不同深度处垂直湍扩散系数也具有显著的位相差异，且二者均随时间呈现四分之一周日周期的变化；5、在地形较为平坦的中央海盆区，内波活动非常微弱，因此跃层内湍流混合非常弱，垂直扩散系数为分子扩散水平，跨跃层物质通量受到显著抑制，而在地形变化较为显著的局地陆坡区，内波活动非常活跃，除内潮的影响外，高频内波与内孤立波的影响也很显著，因此跃层内存在很强的间歇性强混合，内孤立波存在的区域，水体湍流混合显著增强。

In non-contact measurement of displacement and vibration amplitude, the method of electric induced eddy-current which employs the L value measurement and frequency-modulated circuit is distinguished in the followings: the instrument based on it has a high sensitivity which is not effected by temperature variation, the initial gap can be indicated directly, unnecessity of re-calibration for different measured materials, etc.

电涡流；位移测量；调频； L值；线圈；线路；测试法；非接触；灵敏度变化；感应电；感应电涡流在非接触位移、振动测量中，采用L值测试法和调频线路具有仪器灵敏度高且灵敏度不随温度变化、原始间隙直接显示、对于不同被测材料不需重新定标等优点。

The conception of the edge element was firstly proposed by Whitney in 1957. At the beginning of 1980\'s, Bossavit and Verite put it to practical application to three-dimensional eddy-current problems. In 1987, Barton and Cendes applied the tetrahedral element to three-dimensional magnetic calculation.

棱边元的构想，最早由Whitney在1957年提出。80年代初期，Bossavit和Verite将四面体棱边元应用于三维涡流问题，1987年，Barton和Cendes将四面体棱边元首次应用于三维磁场计算揭开了基于棱边的有限元方法在电磁问题中应用的序幕。

101Mm. The two finishing lines are all equipped with straightener, debarring device, deduct device, eddy current detector, automatic length measuring, weighing and rotary drum printing devices.

。二条精整线均配备矫直机、铣头机、吹灰、通径、涡流探伤、自动测长、称重、滚印等装置。

The result is compared with finite element method's result also. The paper's work has richened the finite formulation calculation technology for eddy current field.

该文的工作，丰富和完善了有限公式理论在涡流场方面的计算技术为在其他工程问题上的进一步应用打下了基础。

"Riffles placed transversely along the bottom of the sluice cause the water to eddy into small basins, retarding the current so that gold may settle."

横置于水闸底部的格条使得水流旋转进入小水池，使水流减速，沈淀出黄金。

"Riffles placed transversely along the bottom of the sluice cause the water to eddy into small basins, retard ing the current so that gold may settle."

横置于水闸底部的格条使得水流旋转进入小水池，使水流减速，沈淀出黄金。

"Riffles placed transversely along the bottom of the sluice cause the water to eddy into small basin s, retarding the current so that gold may settle."

横置于水闸底部的格条使得水流旋转进入小水池，使水流减速，沈淀出黄金。

"Riffles placed transversely along the bottom of the sluice cause the water to eddy into small basins, retarding the current so that gold may settle."

横置于水闸底部的格条使得水流旋转进入小水池，使水流减速，沈淀出黄金。到中国译典经典版本中查找关于transversely的最新解释和例句。。。。

Happy Yang Yangyao after dangerous restricted area -- eddy current black forest.

喜羊羊要经过危险禁地——漩涡黑森林。

Chinese traditional virtue is humility and wariness,the compliment and praise to the others should be declination

中国人的传统美德是谦虚谨慎，对别人的恭维和夸奖应是推辞。如

We bought this house on the never-never.

我们以分期付款的方式买下这座房子。