通古斯爆炸包含了地震波和次声扰乱，被世界各地记录下来。
The Tunguska event included seismic waves and infrasonic disturbances that were recorded around the world.
声纳所使用的频率从次声到超声不等。
The frequencies used in sonar systems vary from infrasonic to ultrasonic.
目的研究次声对大鼠血液流变特性的影响。
AIM To study the effect of infrasound on the hemorheology of rats.
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.
背景：次声暴露导致大鼠血-视网膜屏障通透性增加。
BACKGROUND: the permeability of blood retinal barrier in rats can be increased due to the exposure under infrasound.
次声的作用机理是生物共振，次声应用于生物医学，前景将会十分广阔。
Being inaudible and with a mechanism of bio-resonance, infrasound has a brilliant perspective when applied to biomedicine.
次声监测台阵结构的合理设计是抑制环境噪声及增强目标次声信号的一种有效手段。
Proper structure design of the infrasonic monitoring arrays is an effective means to restrain the environment noise and enhance the target infrasonic signal.
在相同的频率和声压级水平下，次声的损伤作用与次声的暴露时间并非呈线性关系。
Under the same frequency and same sound pressure level, the infrasound damage on the brain didn't show linear correlation with the acting time of infrasound.
目的：研究慢性次声作用后对小鼠海马内白细胞介素- 6 (IL - 6)的影响。
Objective: to study effects on the expression of interleukin-6 (IL-6) in the hippocampus of the mouse exposure to chronic infrasound.
1972年，巴黎国际噪声专业会议正式确定了次声的定义，并对次声的暴露标准展开讨论。
In 1972, Paris International Noise Professional Meeting gave a formal definition of infrasound, and discussed its exposure standards.
因此，研究次声的发生、传播、生物学作用机制及制订相应的防护措施已越来越受到人们的重视。
So people are becoming increasingly aware of the importance in studying the mechanisms of the occurrence, spreading, biological effects and preventive measures of the infrasound.
目的观察慢性次声暴露对豚鼠听觉传出通路中重要的神经递质降钙素基因相关肽(CGRP)分布的影响。
AIM to explore the effects of infrasound on the distributions of CGRP IR in the efferent auditory pathways in guinea pigs.
他悄悄爬过舞台，举起了锤头，一次没敲中，第二次也没敲中；忽然一声巨响！
He crept across the stage; he raised the hammer; missed once; missed twice; then a huge bang!
他一次又一次地呼唤他的小朋友，突然他听到沉重的脚步声向他走来。
Again and again he called to his little friend, when suddenly he heard heavy steps approaching.
公路上有挡泥板的断裂声和油漆的刮擦声，这种小事故每天都会在路上发生成千上万次。
There was a crack of fenders and the sound of paintwork being scraped, the kind of minor mishap that occurs on roads thousands of times every day.
我感觉本每过半秒就会发出一次‘咔哒’声，而海豚事实上每秒就发出了900次‘咔哒’声。
Ben clicks, looks to me like once every half second, whereas a dolphin is actually making 900 clicks per second.
他一声不响地看着我，我第一次发现他的眼神中充满了骄傲。
He looked at me without speaking, and for the first time I could see that his eyes were filled with pride.
当全世界都要我放弃，还是期待有人轻语一声：再试一次！
When the world says, 'Give up', hope whispers, 'Try it one more time'.
自成立以来，在我团常任指挥、艺术总监陈家缨女士的带领下，团员们坚持每周一次的练声和演唱训练。
Since its establishment, the chorus members have been practicing vocalizing and singing once every week under the instruction of conductor Ms Chen Jiaying.
我有生以来第一次体验冒着咝咝声的火锅、煎豆腐、拌黄瓜。我来到了一个美食王国。
For the first time in my life, I experienced sizzling hot pot, flash-fried tofu and cold cucumber salad. I was in an eater's paradise.
维纳斯捕蝇草细细茸毛如被轻触两次，它就会“啪”一声扣上。
Venus flytrap snaps shut if its tiny hairs are brushed twice.
不过有一次，我在星巴克跟一个外国人说了声“嗨”，她回了我一个微笑。
But for once, I said 'hi 'to a foreigner at Starbucks and she smiled back at me.
下一次你去上海的时候，请通知我一声，让我给你提供点方便。
Next time you are in Shanghai, please let me know, and let me be of some assistance to you.
想再一次对所有支持我的人，为我投票，发信息给我的人说声谢谢。
I want to say thanks again to everyone who has supported me, voted for me, and left me messages.
当我开始沿着车道往前走，走向未来的新房所在地时，我听到一声巨响，那个大铁球再一次砸向我的老房子。一丝微笑掠过了我的脸庞。
As I began to walk up the driveway to my soon to be new home, I heard a loud crash as the wrecking ball struck my old house again, and a small smile broke across my face.
当全世界都要我放弃的时候，我还是期待有人轻语一声：再试一次。
When the whole world is me to give up when I was looking forward to whisper: try again.
当全世界都要我放弃的时候，我还是期待有人轻语一声：再试一次。
When the whole world is me to give up when I was looking forward to whisper: try again.
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