The attic is a prime source for heat and cold air exchange.
阁楼是冷热空气交换的源头。
Proton Exchange Membrane (PEM) Fuel Cell is a clear and efficient new energy source.
质子交换膜(PEM)燃料电池是一种清洁高效的新型能源。
Tourism mused to be a major source of foreign exchange.
旅游业向来是外汇收入的重要来源。
The research source of this paper is data exchange platform project of Shanxi government extranet.
本论文的研究来源是山西省政务外网数据交换平台的建设项目。
The research source of this paper is data exchange platform project of Shanxi government extranet.
本论文的研究来源是山西省政务外网数据交换平台的建设项目。
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