| 1. | Bold type is often used for vectors .
黑体字常用来表示向量。 |
| 2. | We use boldface type for vectors .
我们用黑体形式表示矢量。 |
| 3. | A blackbody radiator will therefore appear black in all inertial frames .
一个辐射黑体在一切惯性系中都呈现黑色。 |
| 4. | The spectral distribution of a black body radiation is described by planck's .
黑体辐射的光谱分配由普朗克定律描述。 |
| 5. | One of the most fundamental concepts for understanding heat radiation is that of a black body .
理解热辐射的最基本概念之一是黑体概念。 |
| 6. | Weight: the terms bold, medium, light are used to indicate thickness of line .
线粗：黑体、中粗体和细长体这些术语，都是用以指明线的粗度。 |
| 7. | 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。 |
| 8. | 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。 |
| 9. | Blackbody conditions can be closely realized by a small opening in the walls of a closed container .
在一个封闭容器的壁上开一个小孔，可极接近地达到黑体条件。 |
| 10. | Design problems, which represent challenging applications of the text material, are identified by boldface problem numbers .
对于本教材中较难的设计问题用黑体字题号来标志。 |
