涤沦织物点燃后燃烧很慢，在离开火源时通常会自行熄灭。

Fabrics made from polyester burn very slowly when ignited and are usually self-extinguishing when removed from the igniting flame.

youdao

没有任何试片在第二次测试火焰移开后燃烧持续超过60秒钟。

The specimens may not have glowing combustion that persists for more than 60 seconds after the second removal of the test flame.

youdao

没有任何试片在第二次测试火焰移开后燃烧持续超过30秒钟。

The specimens may not have glowing combustion that persists for more than 30 seconds after the second removal of the test flame.

youdao

And you have to imagine him after the commune,after the slaughter and the buildings are still burning,or at least smoldering, that he comes to Paris.

你可以想象,在巴黎公社后,在大屠杀之后,房屋仍在燃烧,或至少是在冒烟,这时候他来到了巴黎

耶鲁公开课 - 1871年后的法国课程节选