黑体

Then it is corrected that the brightness temperature with the radiation coefficient ελ of gray body.

通过比较等辐射量的黑体温度，测出灰体的视在亮度温度———辐射温度；并根据灰体辐射系数ελ和测定的辐射温度修正灰体的测量温度，获得实际温度。

Basic quantities in stellar photographic photometry (in particular, colour index and "effective wavelength") are formulated according to the assumptions that: 1 stellar radiation may be represented by some black body equivalent and 2 within the limits of a single photometric "receiver", intensity-wavelength relationship of the radiation may be taken as linear.

本文对着当前的发展，综述了照相方法在恒星光度学中的地位。接着用两个简单的假设，即星体幅射的黑体近似和累积亮度范围中的直线近似，把恒星光度学中的基本定义(如有效波长、等光波长和色指数等)和主要问题(如空间红化，亮度效应等)表以公式。

Calibration blackbody is the important part of infrared scanner, its performance will affect the quality of infrared imaging.

定标黑体是红外扫描仪的重要组成部分，其性能的好坏会影响到红外成像的质量。

In addition, evidence for high energy excesses above blackbody spectra was also found in the bursts.

另外，在X射线暴中也发现了高出黑体谱的高能超出的迹象。

What type relations do the blackbody temperature and time have?

黑体的温度与时间到底存在什么样的关系呢？

The correlation of peak wavelength and temperature of a blackbody radiator.

峰值波长与黑体辐射源之间的相互关系。

Blackbody radiation always is the result of a succession of emission and absorption processes.

黑体辐射总是一系列发射和吸收过程的综合结果。

The higher the blackbody temperature is, the more the blue spectrum is and the less the red spectrum is.

黑体的温度越高，光谱中的蓝色成分则越多，而红色的成分则越少。

In this paper, the theory and mathematic model of infrared temperature measurement was established according to the principle of blackbody radiation .

从黑体辐射原理出发分析了红外测温的工作原理，推导了它的数学模型，描述了物体的辐射功率与波长、温度之间的关系，即红外测温必须根据实际测温范围，选择不同的工作波长。

Eq. 3 is based on Kirhhoff's physical model of a perfect blackbody source i.

实际测量表明，在90～150℃工作温度范围的黑体空腔（φ64×290mm）内的温差小于0.96℃。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。