restrains

However, the objective needs of reality can often obligate the legislators to break these traditional restrains and develop new legal mechanisms or rules to solve social problems.

然而，现实的需要往往能够迫使立法者突破传统法律理论的束缚，发展出新的、用以解决社会实际问题的法律机制或规则。

Using finite element software to analyzes temperature effect of overlong concrete structure on the condition of four different restrains, and the imitating results proof that the temperature stress was reduced efficaciously by setting the sliding floor, therefore alleviate the crack of the concrete structure.

对超长混凝土结构在四种不同约束状态下的温度效应进行了模拟分析，论证了在超长混凝土结构底板采用滑动摩擦处理能够有效的降低底板温度应力，缓解混凝土开裂。

Presently, the lag of the development of social overhead capital in China restrains the long period development of economy and society in our country.

我国社会先行资本投入与发展的滞后，成为我国经济社会发展的严重制约因素。