Acetylene
n. 乙炔, 电石气\\n[化] 乙炔; 双亚乙基
📖 牛津释义
acetylene
n[U]
(chemistry 化) colourless gas that burns with a bright flame, used in cutting and welding metal 乙炔; 电石气.
🗣️ 情景例句
Britain is behind Japan in developing modern technology.
在发展现在技术方面英国落后于日本。
How many pounds are you going to order?
你要订几磅？
Fifteen policemen had to push very hard to get him off the main street.
15个警察不得不用很大的力气把它推离主要街道。