“underdrain”的概念、定义、翻译、参考文献-科学参考

单词	underdrain
释义	underdrain [`ǝn·dǝr´drān] ^{CIVIL ENGINEERING} A subsurface drain with holes into which water flows when the water table reaches the drain level.
随便看	aperture aperture aberration aperture angle aperture antenna aperture card aperture conductivity aperture disk aperture grill picture tube aperture illumination aperture mask aperture plate guidance station equipment guidance system guidance tape guide bearing guide bracket guide coat guide coupling guided bend test guided bomb guided missile guided-missile control guided-missile exercise head guided-missile ship guided-missile submarine

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