| 释义 |
heating systems
释义
供暖系统（heating system 的复数）
例句
1·No mechanical devices are used in passive heating systems .
被动的加热系统中没有用到机械装置。
2·Siduria recently implemented a program to convert heating systems from oil to natural gas.
Siduria 最近实施了一项计划：将供暖来源从石油改为天然气。
3·We do also have more complex systems that are used for space heating and they fall into two categories, passive and active heating systems .
我们确实也有更复杂的系统用于空间供暖，它们分为两类，被动供暖系统和主动供暖系统。
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