1.(古代化学认为可燃物中存在的)燃素,热素
1.a hypothetical element that some early scientists, before the discovery of oxygen, believed to be present in all combustible substances to make them burn
1.A thing was inflammable if it contained phlogiston.
一样东西如果含有燃素，它就能燃烧。
2.As has been mentioned, some postulated that phlogiston has negative weight ( levity ).
正如所提到的那样，某些燃素会减轻（轻率）的假定。
3.There are few Ptolemaic astronomers left, or believers in the phlogiston theory of combustion.
如今，没有几个天文学家信奉托勒密的地心说，也不会有人相信燃素说。
4.History of Chemistry Burning is decomposition process : Fuel =phlogiston metal + ash =phlogiston ash + phlogiston Third part Third part
燃烧是分解过程：可燃物=灰烬+燃素金属=锻灰+燃素
5.Command of Scientific Mode of Thinking and Rise and Decline of Phlogiston Theory
从燃素说的兴衰看掌握科学思维方法