Their data showed that the speed of part of the condensate exceeded the speed of sound, and they had therefore made an acoustic event horizon.
之后他们压缩减压能产生声波的这种气体。数据表示部分冷凝物的速度超过声速，因此他们制出了声音的黑洞边界。
His shining eyes held fast to the horizon, and he seemed to be listening for some sound that was wanting from that inland acreage, vocal as it was with the cheerful music of pasturage and farmyard.
他目光炯炯地紧盯着地平线；像在倾听某种声音，那是内陆地带所缺少的，尽管那里有牧场和农庄的欢快音乐。
Our eyes don't lift the horizon, our ears don't hear the sound around us, our experience is restricted as we pass our days in a routine that is both comforting and limiting.
我们的目光将不再放眼远方的地平线，耳朵也听不到那些熟悉的声音。当我们满足于眼前的生活而日复一日的时候，它同时也局限了我们对生活的体验。
Under dusk, the sun slowly fell the horizon, the vast sky is dyed gorgeously romantic red, at this time the night market crowd has lived, their noisy sound is such rich life vigor. is very lively;
黄昏了，太阳慢慢的滑落下地平线，辽阔的天空被绚染成一片浪漫的红，这时候夜市的人群活了起来，他们嘈杂的声音是那样的富有生命的活力。
A rainbow over the horizon transfixes an Alaskan fisherman hunting in Norton Sound, Alaska, part of the mouth of the Yukon River.
一名本地渔夫正在阿拉斯加州的诺顿桑得的育空河入海口处捕鱼，一条彩虹悬在他的正上方，仿佛从他的头里穿过一般。
For type III, they accelerate, break the long-wavelength speed of sound, then cross the horizon.
至于第三型的声子则会加速，超过长波的声速，然后穿越视界。
For type III, they accelerate, break the long-wavelength speed of sound, then cross the horizon.
至于第三型的声子则会加速，超过长波的声速，然后穿越视界。
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