Code of practice on the installation and maintenance of underfeed stokers .

下给加煤机的安装和维护实施规程。

That evening stokers , street-sweepers and window-washers-in earlier life musicians , philosophers and writers-partied at the former stagehand 's home .

那天晚上，司炉工，马路清洁工，窗户清洗工，还有那些尚未成名的音乐家、哲学家和作家在这位前布景管理员的家中聚会。