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气球能在天空飞是因为热空气会向上升。
A balloon can fly in the air because hot air rises.
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它使用热空气。
It uses hot air.
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这个机器使热空气通过对流来循环。
The machine circulated hot air by convection.
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电力用于加热空气在数据中心。
The electrical power used heats the air in the data center.
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阁楼是冷热空气交换的源头。
The attic is a prime source for heat and cold air exchange.
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热空气层的顶部起镜子的作用。
The top of the layer of hot air ACTS like a mirror.
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他们充满了风或者充满了热空气。
They were full of wind or full of hot air.
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提出了湿热空气脱酸的可行性方法。
Advance the viable means of pull off acid by wet and hot air.
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来自下面热空气上升使风管朝向地面。
Warm air rising from below causes the wind tube to reach toward the ground.
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热空气要较冷空气容纳更多的水蒸汽。
Warm air can contain more water vapor than cold air.
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热空气膨胀，冷空气收缩。
Hot air expands. Cold air contracts.
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坎迪斯：一切充满热空气。
Candice: It's all just hot air.
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因为它们里面全是热空气。
They are full of hot air...
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因为它们里面全是热空气。
They are full of hot air.
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因为它们里面全是热空气。
They yare full of hot air.
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热空气上升时，冷空气便占据它的位置。
As the warm air rises, cooler air takes its place.
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烟尘进一步加热空气。
The soot heats the air further.
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那儿充满了风和热空气。
There were full of wind or full of hot air.
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是用加热空气的方法吗？
Would it be some way of heating the air?
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而热空气为一阵冷风？
And hot air for a cool breeze?
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虽然空调释放着热空气，他仍然然感觉寒冷。
Though the air-conditioner gave off warm air, he felt cold.
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难道仅仅是热空气？
Or just hot air?
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热空气反射来自天空的光，正像镜子反射那样。
The hot air reflects the light coming from the sky, just as a mirror does.
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一股热空气吹进来。
A blast of hot air blows in.
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对通过中国南方黑热空气的发动机轰鸣声削减。
The roar of the engine cuts through the black hot south China air.
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保护眼睛避免受风，热空气，烟雾和灰尘的影响。
Keeping eyes protected from the wind, hot air, smoke, and dust.
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如果我们用热空气装满一只气球，它就会升起来。
If we fill a balloon with hot air, it will go upwards.
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说明：本产品暴露于湿热空气中会发生剧烈反应。
Description: If exposed in the air. The product can be oxidized by oxygen.
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说明：本产品暴露于湿热空气中会发生剧烈反应。
Description: If the product is exposed in the air. It can be oxidized by oxygen.
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说明：本产品暴露于湿热空气中会发生剧烈反应。
Description: If the product is exposed in the air. It can be oxidized by oxygen.
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