| 1. | Every body radiates heat in the form of electromagnetic waves .
每一物体都以电磁波的形式辐射热。 |
| 2. | The range of the spectrum in which heat is radiated mostly lies within the infrared portion .
辐射热的光谱段大部分落在红外区。 |
| 3. | After kirchhoff's law a black body also emits the maximum possible amount of radiant heat .
根据克希霍夫定律，一个黑体也放射出尽可能多的辐射热量。 |
| 4. | Carbon black is an opacifier which prevents radiant energy transmission to the interior of the propellant .
炭黑是不透明的，可以防止辐射热传到推进剂内部。 |
| 5. | As the gas heats, its electrical resistance decreases and it radiates heat energy less efficiently .
随着气体被加热，这些气体的电阻下降，辐射热能的效率也随之减低。 |
| 6. | Pyrometers, radiometers, bolometers are used for determining heat radiation and have applications for measuring the surface temperature of hot lavas .
高温计、辐射计、辐射热测量仪用来测定热辐射和热岩熔的表面温度。 |
| 7. | The substitution of evacuated powders for high vacuum alone will usually improve the insulation by reducing the radiant heat transfer .
只需用抽空气体的粉末而不用单纯的高真空，一般便可减少辐射热传输，从而提高绝缘度。 |
| 8. | Even at the south pole the radiation received from the sun at midsummer's day equals the heat from a network of one-kilowatt electric fires, spaced five feet apart .
甚至在南极，夏至那天从太阳吸收的辐射热，也与互相间隔五英尺的一千瓦电炉组成的电炉网所放出的热量相等。 |
| 9. | The heat produced by this radiation is called radiant heat
由于辐射出现的热量称为辐射热。 |
| 10. | Heat transfer or loss by radiation emission
辐射热传递或损失 |
