Air-flue gas mixture
[機] 空氣-煙道氣混合物
?? 詞語組成解析
air
[??]
n. 天空;氣氛;空運;（簡單易記的）曲調;
vt.& vi. 晾曬;烘干;播送;廣播;
vt. 使房間通風， 透氣;
n. 煙洞, 煙道, 暖氣管, 漁網, 蓬松物\\n[機] 煙道, 煙管
gas
[g?s]
n. 氣體;[礦業] 瓦斯;汽油;毒氣;
vt. 加油;毒（死）;
vi. 加油;放出氣體;空談;
int. 該死！（令人氣憤的人應即被送毒氣室處死）;
??? 情景例句
What a wonderful morning!
多么美好的早晨！
Money makes the world go round.
有錢好辦事。
After the accident, all the lines and taps were clearly marked and new people joining the workforce were given a talk on safety before they started work.
火災過后，所有的管道和龍頭都被標得一清二楚，而且加入勞動隊伍的新工人在開始工作之前要接受有關的安全教育。