Make sure your drainage plan slopes away from homes or other structures to protect against flooding and moisture damage.

确保您的排水计划斜坡远离家园或其他结构，以防止洪水和水分损失。

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With improvement of aeration, infiltration and drainage percent, the availability of moisture soil increases corresponsively.

随着土壤的通气性和渗透、排水率的改善，土壤有效水分增加。

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Field experiments dealing with the effects of different measures of irrigation-drainage technique on regulating soil moisture and the growing status of rice were conducted during 1992.

1992年进行了在水稻分蘖后期采用不同灌溉排水技术措施的试验，以研究其调节土壤水分状况及其对水稻生长发育的影响。

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