| 单词 | overhead pipe |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔sprinkler system〕A fire-extinguishing system consisting of a network of overhead pipes that release water automatically when a predetermined temperature has been reached.喷水灭火系统：当达到预警温度时能够自动放水的管道灭火装置，通常称为喷水灭火系统美国传统 |
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