u firing boileru-firing boileru: U, u (pl. U's, u's ) 1 ...形: form; shape火焰: flame; blaze马蹄形火焰炉: u-flame furnace火焰炉: flame furnace下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:u形火焰炉，即可在微信中查询翻译
