查询词典 bec

Here, you can see the Mabuchi 550 12-volt motors, the Graupner Speed-Profi 50 Reverse BEC Speed Controllers, the Master Airscrew 3.0:1 Ratio Gearboxes, the brass stuffing tubes with Oilite bearings and O-ring seals and the 3/16 diameter propeller shafts.

在这里，您可以看到万宝至五五零一二伏马达，格劳普纳速度Profi的50扭转选委会的速度控制器，主airscrew 3.0：1的比例，变速箱，黄铜填料管oilite轴承和O形密封圈和3 / 16 直径螺旋桨轴。

BEC ause of poverty father had no schooling and almost didn't know a b from a battledore.

由于贫穷，父亲没有受过教育，几乎是目不识丁。

This MBA gives students the opportunity to spend 6 weeks on a placement with an international company, as well as on-going language training in the major world languages. The University of Newhaven offers a limited number of scholarships to home and international students.

BEC考试除了对考生是否具有扎实的英文基本功进行测试外，还在出题时为考生发挥其创造性思维留有很大空间，这在BEC三个级别的写作和口语考试中体现地尤为明显。

Th is MBA gives students the opportunity to spend 6 weeks on a placement with an international company, as well as on-going language training i n the major world languages. The University of Newhaven offers a limit ed number of scholarships to home and international students.

BEC考试除了对考生是否具有扎实的英文基本功进行测试外，还在出题时为考生发挥其创造性思维留有很大空间，这在BEC三个级别的写作和口语考试中体现地尤为明显。

Directions: Study the following picture carefully and write an essay in which you should: 1 describe the picture, 2 interpret its meaning, and 3 illustrate your comment with an example exampl

BEC考核四项语言技能：听、说、读和写。 BEC P级，阅读和写作为一张考卷。BEC V级和H级的考试中，阅读和写作是在分开的试卷上。下表中列出的范围涵盖在BEC考试各个级别之中。总的来说，以下的范围每个级别都类

It is shown that the atoms from trapped state in Bose-Einstein condensate excited to untrapped states by two-mode radiation frequency maintain properties of coherent states.

结果表明：在光场作用下，V型三能级原子BEC中被激发到非俘获态的原子，仍保持其相干态的特性，从而在理论上证明了利用V型三能级原子BEC与双模压缩相干态光场相互作用可以产生双模原子激光。

Due to the Pauli\'s exclusion principle,fermions can only form BEC through the formation of Cooper pairs based on the Barden-Cooper-Schrieffer theory.

BEC是量子统计物理学的基本结论之一。

We show the Josephson effect and MST phenomenon in different superfluid regimes of BCS-BEC crossover,give the relation between the coupling strength and the oscillation of particle number,and predict the range of the system parameters for guiding an experiment.

我们详细讨论了约瑟夫森效应和宏观自囚禁现象在BCS-BEC渡越的各种超流区域中的行为，给出了两团原子气体之间的耦合强度与粒子数振荡和自囚禁等效应之间的相互关系，预言了有关实验现象并给出了产生这些现象的系统参数范围。

Therefore, we point out that there exist an essential difference between the two-component and single yrast line, i.

从而，我们指出，双分量BEC和单分量BEC的yrastline存在本质的区别。

On condition that there exist weak excitations in the two-component BEC, the SO (3, 2) Lie algebraic description still work. The eigenstates and energy-gap equation have been obtained.

对存在弱激发的双分量BEC，SO（3，2）代数方法仍然近似有效，我们由此求得了系统的本征态和弱激发能隙方程。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。