1.
Because of the continuous decay, the quantity of radioactive material and the rate of emission of radiation decrease steadily.
由于连续衰变的结果，放射性物质的数量，辐射发射率都逐渐下降。
2.
cavity emissivity
空腔发射;空腔发射能力;气体容积辐射;容积辐射率
3.
To send out rays or waves.
放射，辐射发出射线或波
4.
The ratio of the radiation emitted by a surface to the radiation emitted by a blackbody at the same temperature.
发射率在同一温度下一表面发射的辐射量与一黑体发射的辐射量的比例
5.
Measuring method for normal total emittance of infrared heater
GB/T7287.9-1987红外辐射加热器全法向发射率测量方法
6.
Study on Preparation and Performance of High Emissivity Infrared Radiant Ceramics;
高发射率红外辐射陶瓷制备与性能研究
7.
Preparation and Study of Infrared Radiation Coating with High Emissivity at High Temperature;
高温高发射率红外辐射涂层的制备与研究
8.
Study of the Calibration Hot Target for Spaceborne Microwave Radiometer and the Testing of Emissivity
星载微波辐射计定标热源及其发射率测试研究
9.
Effect of ~(60)Co-γ Ray Radiation on the Germination Rate and Growth of Tagetes erecta
~(60)Co-γ射线辐射万寿菊对发芽率及生长的影响
10.
A beam of high radiant power will have high divergence.
高辐射功率的光束会有高的发散度。
11.
Quantum Coherent Control of Spontaneous Emission and Ionization Rate;
自发辐射和电离速率的量子相干控制
12.
emission detector
(红外辐射) 发射型探测器
13.
Plutonium radiates dangerous emissions.
钚发射危险的辐射物。
14.
Study on Gamma-Ray Burst Efficiency, Energy and Early Afterglow;
伽玛射线暴辐射效率、辐射能及早期余辉研究
15.
The solar absorptance changed obviously,while the emittance has little change after irradiation.
材料辐照后太阳吸收率发生明显变化,而辐射率几乎不发生变化。
16.
external gamma dose rate
外来伽马辐射剂量率
17.
radiation-enhanced burning rate
辐射增强的燃烧速率
18.
low resolution infrared radiometer
低分辨率红外辐射计