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1·Emissivity is an important parameter in radiometry.

比辐射率是辐射度学中的重要参量。

2·This is the emissivity value of the reference object.

这是引用对象的辐射率值。

3·A new method of measuring target wideband emissivity is presented.

提出了一种新的测量发射率的方法。

4·Coatings specially designed for reduced optical reflectivity or emissivity.

专门设计用来降低光学反射或辐射的涂料。

5·The use of metallised fabrics is sometimes proposed to reduce the emissivity of a fabric.

不时地有人建议采用镀有金属膜的织物以减少织物的发射率。

6·The IR radiation intensity of target depends on the temperature and the IR emissivity of it.

目标的红外辐射强度是由目标表面温度和目标表面发射率两个因素决定的。

7·Key problems on energy saving of high emissivity coating at middle temperature are discussed.

本文论述高发射率涂料在中温下使用，节能的若干关键问题。

8·An effective method for determining precisely the error or the emissivity of a cavity is given.

提供了一种能够精确确定腔体发射率误差的有效方法。

9·By experiment, we proved that it is one of efficient method for spectral emissivity measurement.

经实验验证这是一种有效的发射率测量方法。

10·The emissivity of natural meterial is a important factor in the interpretation of thermal image.

在热红外扫描图像的判读工作中，热红外发射率是一个极为重要的影响因素。

(1)surface emissivity表面发射率，表面发射系数