And if you place a cool gas in front of a hot source, you will see certain patterns which we call absorption lines.
如果你将冷气体置于热源前，你会看到一些特定图形，称之为吸收谱线。
The load calculation method, which is the key step for system design and hot source instrument selection in asphalt mixing plant and storage, is introduced in this paper.
介绍了常见的沥青拌和厂(站)和沥青储库中供热系统设计和热源设备选型的关键—系统的热负荷计算方法。
Show conduction of heat along this metal strip from a "hot" source to a "cooler" one.
这是一个示范热由高温传导至低温的金属装置。
Show conduction of heat along this metal strip from a "hot" source to a "cooler" one.
这是一个示范热由高温传导至低温的金属装置。
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