modulus of drainage 排涝模数
modulus of subsurface drainage 排渍模数
modulus of surface drainage 排涝模数
modulus of groundwater drainage 地下水排水模数
To reasonably determine drainage modulus is very important for decreasing logging loss in diked area.
合理确定圩区排涝模数对于降低涝灾损失有重要意义。
Introduced in this paper is the establishment of the system model and database of the Shanghai municipal drainage management system, including the division of modulus with different functions.
本文介绍了上海市政排水设施管理系统的系统模型和数据库建立工作，以及系统功能模块的划分。
It can not only increase the bearing capacity of supporting course, but also reduce the deformation modulus of the foundation and accelerate the drainage and consolidation function of the foundation.
它不仅能提高持力层的承载力，减少地基变形量，同时还可以加速地基的排水固结作用。
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