At last, it is hard to maintain, just as interface design and procedure design are mixed.
三是界面设计和程序设计混在一起，维护相对困难。
This paper introduces the design method and the procedure of civil engineering model bag concrete. And also the experiment mixed ratio and the design selection of the filling concrete.
介绍了土工模袋混凝土的设计方法和步骤，以及填充混凝土的试验配比和设计选择。
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