“back siphonage”的概念、定义、翻译、参考文献-科学参考

单词	back siphonage
释义	back siphonage [`bak ¦sī·fǝn·ij] ^{CIVIL ENGINEERING} The flowing back of used, contaminated, or polluted water from a plumbing fixture or vessel into the pipe which feeds it; caused by reduced pressure in the pipe.
随便看	upper punch upper ridge upper semicontinuous decomposition upper semicontinuous function upper sideband Upper Silurian upper transit Upper Triassic upper trough upper winds up quark upright uprush UPS upset upsetted moraine upsetting test upset welding upsilon particle upslope fog upslope time upstand upstream upstream face uptake

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