英语词汇“Lifting gas”是什么意思，翻译、用法及简单造句-英汉双解词典-英汉网

单词	Lifting gas
释义	Lifting gas 英语百科 Lifting gas Because of Archimedes' principle, a lifting gas is required for aerostats to create buoyancy. Its density is lower than that of air (about 1.29 kg/m, 1.29 g/L). Only certain lighter than air gases are suitable as lifting gases.
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