1、

Calculation method of piston air induced by train motion in subway tunnels is derived based on fluid continuity equation and Bernoulli equation. Further qualitative analysis is carried out on some key factors affecting the piston effect.

以流体连续性方程及伯努利方程为理论依据,针对地铁特点,推导得出隧道内列车活塞风的计算方法,并对影响活塞效应的因素做定性分析。

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2、

The negative effect that economic crisis allows malign competition exposeds open air directly come out.

经济危机让恶性竞争的负面影响直接曝露出来.

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3、

You should air the clothes to get the damp out.

你应该把衣服晾一下去去潮气.

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4、

Air the clothes to get the damp out.

晾晾衣服以驱潮气.

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5、

In that cold air the sweet notes the flute rang out.

笛管优美的旋律便在这清冷的夜空中传出.

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6、

Buildings to the extent possible the use of air conditioning, not to go all out.

建筑物的空调要尽可能使用, 不要矫枉过正,全部停用.

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7、

She had thought of flying out to breathe the fresh air in an interval of truce.

她想跑出去呼吸一下休战期间的新鲜空气.

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8、

There's something beautiful about being able to conjure up a beautiful meal out of thin air when you're sat at home and can't be bothered to cook, she added.

坐在家里,不用费力做饭,凭空就有好饭好菜变出来,真是太美了,她说。

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9、

In taking part in out-door sports, we closer to nature and can take in fresh air.

参加户外运动, 我们能更接近大自然并能吸收新鲜空气.

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10、

To find out, I hid my MacBook Air under the bed and replaced it with four tablets paired with keyboard covers.

为了探个究竟,我把我的苹果笔记本MacBook Air藏到床下,用四台配有键盘盖的平板电脑取而代之。

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11、

By contrast, as of Monday, the MacBook Air uses the latest Intel processors, just out, which promise huge increases in battery life and better graphics.

相比之下,上周一刚发布的新款MacBook Air使用的是最新英特尔(Intel)处理器,据称能够显著提高电池巡航时间和提供更好的图形处理能力。

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12、

How delightful to be out in the air, near the fresh rose-bushes, that seem as if they would never finish blossoming!

在外面,在那些玫瑰花丛之间,一切是多么美丽啊——这些玫瑰花好像永远开不尽似的!??

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13、

During his subsequent patter, he scoops some confetti out of the glass and, if he chooses, tosses it up into the air.

在他的随后啪答声期间,他挖出一些五彩纸屑在玻璃外面,如果他选择,扔它入空气。

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14、

A Winter Down Jacket: Zip it, then roll it the same way you would a top, trying to squeeze as much air out of it as possible as you go.

冬天的羽绒服:把拉链拉上,然后像卷外套那样卷,试着尽可能地把里面的空气挤出来。

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15、

The CR400BF-G Fuxing bullet trains are designed to withstand the climate in extremely cold areas that may be hit by blizzards, which can keep out the snow and cold air.

据介绍,CR400BF-G型复兴号高寒动车组系在复兴号动车组“金凤凰”的基础上进行了高寒适应性技术提升。CR400BF-G型复兴号高寒动车组具有耐高寒、抗风雪等特点,能够在-40℃的天气下运行。

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16、

In fact, the problem of overemployment of workers in China not appears out of thin air, which occurrence and development must have its historical roots and a variety of drivers.

实际上,我国劳动者过度就业的问题并不是凭空出现的,其产生、发展必然有其历史根源和各种驱动因素。

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17、

The first two classes finish and the25-minute break finally arrives. I need to go out to get some fresh air. Then, I return to the classroom and do some homework.

前两节课结束。终于盼来了25分钟大课间,可以出去透透气,再抓紧时间写点作业。

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18、

The random process of two phase flow formed out of air entrained in the water by the aerator is an ergodic process, its amplitude distribution is in accord with the normal distribution.

利用掺气坎在水中强迫掺气形成水气两相流,其压力脉动属于平稳,各态历经随机过程。

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19、

He heard the air rushing out of his lungs; then he was wounded again.

他听到空气冲出双肺的声音; 于是他又挂彩了.

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20、

My soul seemed to go out from my body and float about the air.

我的灵魂似乎离开了我的身体,飘到半空中.

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