单词：direct heating
direct heating的用法和样例：
例句
- Direct heating in an electric furnace is the dominant commercial practice.在电炉内进行直接加热成了在商业上独占的方法。
- When combined with the detection and sample preparation chemistries, direct heating allows several test assays to be run in a single rapid reaction.当联合进行检测与样品准备的时候，直接加热系统允许在单次快速反应中进行几项检测。
- It is one of the atmospheric burnner with low pressure and guidance sprays.It can be used in direct heating for industry.该燃烧器属于低压引射大气式燃烧器，可用于工业直接供热。
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