查询词典 wave motion

Low- protons can be efficiently heated by the enhanced Alfvén waves. And this efficient heating process is attributed to nonresonant wave-particle scattering that leads to randomize protons motion.

本文的研究重点是日冕加热过程的准线性动理学，即低的质子能被阿尔芬波有效加热的问题，这一有效加热主要是由于波粒非共振散射使粒子运动无规化而实现的。

Methods: The motion of parasternal papillary muscle anterior wall, inferior wall, posterior wall, and lateral wall were detected by 2DE at short axis view of left ventricle before PTCA, 3 d and 1-3 months after PTCA in 33 cases of patients with coronary heart disease, who received PTCA+stent at selected time. Peak systolic velocity of subendocardial, subepicardial and middle layer myocardium, transmural velocity difference of the same segments and Outer lateral mitral valve annulus were also detected at apical 4 chamber view by pulsed wave tissue Doppler imaging.

对33例择期行PTCA+支架术的冠心病患者用HP5500型超声诊断仪，于PTCA术前及术后3d、1-3个月对胸骨旁左心室乳头肌短轴切面的前间壁、下壁、后壁、侧壁行二维超声心动图(2DE)检测各节段的室壁运动情况，用脉冲组织多普勒成像检测上述各节段的内、外膜下及中层心肌的收缩期峰值速度，内外膜下心肌的收缩速度差及心尖四腔观二尖瓣外侧环的收缩期峰值速度。

The calculation results shows that ,(1) when the rotor rotates at the working speed, a local regurgitant whirlpool that is rightabout to the rotor"s rotating direction appears in the classifying region, which makes the separated granules come back to the outside of the classification district and influences the classification efficiency of the turbine classifier;(2) in the condition of a low rotating speed of turbo rotor, ultrafine particles can follow the gas phase by and large, but when the rotating speed increases, a phenomenon of velocity slippage between two phases appears evidently;(3) A operating parameter, air flow rate is so important that can directly influence the stability of flow field in classifying chamber, the bigger the air flowrate is , the steadier the flow field is;(4) Compared with straight blades, the new shape of blades with backward crooked elbow are helpful to improve the stability of flow field and form whole stream easily, also beneficial to advance the classification accuracy and classification efficiency;(5) The motion trace of particles are very complicated when the turbo rotor rotates at a high speed, the constant bounce of the particles appear between the blades and the coarse particles are even bounce back from the inlet, only the finer can pass through the classification area from the oulet;(6) Along with the increase of the rotor"s rotating speed, radiah axial and tangential velocity all begain to fluctuate repetitively like sine-wave, the smaller the particles are, the more violently they fluctuates.

数值模拟结果表明，(1)在涡轮达到工作转速时，在分级区域形成了一个与涡轮旋转方向相反的局部回流涡，它使得分离出来的细粒重又被带回分级轮外边缘，从而严重影响分级机的分级效率；(2)粉尘粒子在涡轮低速运动情况下，基本上能跟随气体运动，但随着转速加大，两相之间出现了明显的速度滑移现象；(3)分级机工作时的风量也是一个比较重要的操作参数，它可以直接影响到分级机内腔流场的稳定性，风量越大，流场越稳定；(4)同直叶片形状相比较，带后弯导板的叶片，有利于改善流场的稳定性，流场容易形成整体流，对提高分级效率和分级精度都非常有利；(5)粒子轨迹线在涡轮转速较高时十分复杂，有的出现了反复的弹跳现象，大颗粒不能通过分级区域而从进口返流了，只有细小的颗粒才从出口处流出；(6)涡轮转速加大时，粒子的径向、轴向和切向速率出现了明显的类似于正弦波的脉动现象，颗粒越小，脉动程度越为剧烈。

The focal mechanisms of moderate-small earthquakes are calculated tentatively using digital seismic wave data in some provincial digital seismic networks based on the program of focal mechanism determinations combing the first motion of P, SV and SH waves with their amplitude ratio, which is recently developed by Snoke.

引言 强震前震源及附近地区中小地震的震源机制解是否变化，一直是地震预测比较关心的问题[1]。由P波初动求取地震的震源机制解是地震学中一个常用的方法，但这种方法要求所计算的地震被很多台站记录到[2]。

Act the role of integratedly article, 9 kinds of big ten million such as bag of shoe of the T-shirt, wave, doll, model, bag, cap, motion are young wet person chats to hide with the exclusive secret that expresses oneself.

综合饰品、T 恤、波鞋、玩偶、模型、包包、帽子、运动等九大类千万年轻潮人聊以自表的独家秘藏。

The sea volcano in the coast neighborhood in Puerto Rico explosion,wave and the sea of motion and variety all is creation time the reason of the voice.

波多黎各海岸附近的海底火山爆发、海浪和海温的波动与变化都是产生次声的原因。

At last,the wave loads and motion response of the structure block made up of four steelcylinders were calculated. The results show that the method in the paper is practical.

针对直径10.5米的四个钢筒组成的模块，计算得到了其波浪载荷及运动响应，计算结果表明了本文方法的可行性。

Each wave moves across the surface of the ocean with an up and down motion.

每一朵浪都会在海面上经历无数个一起一伏的运动过程。

When sound waves enter the cochlea,which is really a tube coiled around,they set a membrane into a back and forth motion and cause a new wave.

当声波进入耳蜗这条盘旋的管道，它令薄膜前后移动并且产生新的波动。

In quantum mechanics, its motion is two-dimensional resonance. Its energy level is separate. Its wave function is probability.

如果考虑它的量子效应，在垂直磁场方向是二维各向同性谐振子的运动，它的能级是分立的，对应的波函数是几率波函数。

The dynamic variation in content of cndogenous abscisic acid,indoleacetic acid,gibberellinsand isopentenyladenodines of normal juvenilefruit and dropped fruit was measured with enzyme linked immunosorbent assayin the course of physiological fruit drop of 'Shuizhang Longan.

应用酶联免疫法测定了水涨龙眼生理落果期间正常幼果和脱落幼果中内源激素ABA、IAA、GAs及iPAs含量的变化。

Zillions of code examples on the web.

网上数量巨大的代码例程。