exhausting the air brake cylinders放: release; set free; let go尽: exhaust; finish制动: braking; retardation; retain ...气缸: air cylinder; cylinder余: Nine minus four is five.; Fo ...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:放尽制动气缸余气,即可在微信中查询翻译