他听见一个尖细的重声在歌唱：“带我跳华尔兹吧，威利，一圈一圈又一圈地跳呀。”
From far off he could hear a childish treble singing: "Waltz me around again, Willie, around, around, around.
尽管他们发誓要保持联系，唯一的可能却是这就是最后一声互道珍重。这大概是生命无法承受之重。
And although they swear to each other that they will stay in touch, the mere possibility that this is a final farewell is almost too much to bear.
声乐练声曲不仅是一种特殊的音乐体裁形式，更是一类十分重要的声乐演唱训练材料。
Training Tunes are not only a special form of music, but also a very important training material in Vocality.
研制宽频带水下目标模拟器对于开展水下对抗技术的研究和验证水下声系统的性能具有十分重要的意义。
The study of the underwater wideband target emulator plays a very important role in improving the underwater acoustic system technology and verifying the performance of the underwater acoustic system.
串音消除器的性能在虚拟环绕声系统中十分重要。
The performance of crosstalk canceller is very important in a virtual surround sound system.
一个软光学声子模来源于在铌-氧平面内的三重简并对称弯曲振动。
A condensed soft optical phonon mode originates from the triply degenerate symmetric in-plane O-Nb-O bending.
结果随次声作用次数增加，脑超微结构损害愈重；
Results With increase in the times of infrasonic damage, cerebral ultrastructure became more aggravated.
周五晚些时候，随着这架波音777一声着地，飞机＂人类乘客们＂都被安置到了旅店内，并后来重预定了其它的航班。
Once on the ground late Friday, the Boeing 777's human passengers were put up in hotel rooms and later rebooked on other flights.
本文研究声重波在垂直切变风场中传播时谱结构的改变。
In this paper, the variation of spectral structure of acoustic gravity waves (AGW's) propagating through a region of vertical wind shear is investigated.
本文求出了声重波传播过程中，低热层臭氧含量振荡和温度场起伏间的耦合关系。
In the course of acoustic-gravity wave (AGW) propagation, a coupling relation between the ozone density oscillations (ODO) and temperature fluctuations (TF) in the lower thermosphere is presented.
根据可压缩情况下的流体力学方程组，导出垂直切变风场中大气声重波的谱方程。
By using the compressible hydrodynamic equations, a spectral equation describing propagation of AGW's in a region of vertical wind shear is derived.
橐橐声，脚步声，蹄声：一种尖利、重浊的声音，例如马蹄敲击路面的声音。
A sharp, hollow sound, as of a horse's hoof striking pavement.
方法，研究时空变化风场中声重波波包的演变过程。文中导出了声重波波长、相速、传播方向以及振幅的演变方程。
B. method, we have investigated the evolution process of an AGW packet in a spatially and temporally varying wind.
本文讨论了赤道附近地球磁层中磁声重波沿重力场方向的传播特征。
In this paper, we discuss the characteristics for magneto-acoustic-gravity waves propagating along the direction of gravitational field in the earth's magnetosphere near the equator.
文中导出了声重波波长、相速、传播方向以及振幅的演变方程。
The evolution equations of wavelength, phase velocity, propagation direction and amplitude of the AGW packet are derived.
第一个新年球是一个700磅重的铁木球，还会发出沉闷的金属声，同时上面装饰了100个25瓦的电灯泡。而到了1920年，一个400磅的，漂亮的新球替换掉了最原先的那个球。
The first ball was a clunky 700-pound, iron-and-wood number and was adorned with just 100 25-watt light bulbs. In 1920, a spiffy new 400-pound ball replaced the original.
第一个新年球是一个700磅重的铁木球，还会发出沉闷的金属声，同时上面装饰了100个25瓦的电灯泡。而到了1920年，一个400磅的，漂亮的新球替换掉了最原先的那个球。
The first ball was a clunky 700-pound, iron-and-wood number and was adorned with just 100 25-watt light bulbs. In 1920, a spiffy new 400-pound ball replaced the original.
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