Fire water drain pit is provided at side of bottom of each fire elevator well, waste water will be sucked up and drained out by the pumps.是什么意思_Fire water drain pit is provided at side of bottom of each fire elevator well, waste water will be sucked up and drained out by the pumps.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句