“farmland drainage system”的概念、定义、翻译、参考文献-科学参考

单词	farmland drainage system
释义	farmland drainage system Encyclopedia 农学农业水土工程释 farmland drainage system农田排水系统排除农田过多的地表水和土壤水，降低耕作层中的地下水位，并将农田中多余的水滞蓄或输送到容泄区的工程设施。
随便看	surface of degree p surface of discontinuity surface of equal distances surface of finite type surface of general type surface of genus g surface of genus zero surface of intersection surface of least area surface of Liouville type surface of materials surface of negative curvature surface of order n Surface of phase change heat transfer surface of positive curvature surface of r contours surface of revolution surface-of-revolution parallel surface of rotation surface of screw motion surface of second order surface of section surface of semiconductor surface of singularities surface of slope

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