dasymeter
名词 n.
英文释义
名词 n.
-
An instrument for testing the density of gases, consisting of a thin glass globe, which is weighed in the gas or gases, and then in an atmosphere of known density.
— The dasymeter consists of a two-armed lever or balance beam, on one arm of which is a hermetically sealed glass sphere of 3 litres capacity, while the other arm carries a balancing weight. The higher the percentage of carbonic anhydride contained in the gas to be examined, the higher will be its specific gravity, and consequently the greater its weight.
词形变化
词源
Ancient Greek δασύ(ς) (dasú(s), “dense”) + -meter (“measuring device”).
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数据来源: Wiktionary