smokeless
More and more restaurants are providing non-smoking areas.
越来越多的餐厅开始辟出无烟区。
—— 柯林斯例句a smoke-free working environment
无烟工作环境
—— 给力词典精选There are chemical fuels that are clean and smokeless.
有些化学燃料是清洁无烟的。
—— 辞典例句Every powder produces erosion or bore wear to some extent.
每一种无烟药都会有某种程度的烧蚀或炮膛磨损。
—— 辞典例句An effective system uses fuel that ignites easily, burns as smokelessly as possible.
有效的加热系统所用的燃料必须易于引火, 燃烧时尽可能无烟。
—— 辞典例句