We study the test function space carefully, then make the correct choice of test functions, such that test function space matches with the solution function space in each problem.
我们仔细地研究了试验函数空间并且正确地选择了试验函数，使得试验函数空间与解函数空间相匹配。
We study the test function space carefully, then make the correct choice of test functions, such that test function space matches with the solution function space in each problem.
我们仔细地研究了试验函数空间并且正确地选择了试验函数，使得试验函数空间与解函数空间相匹配。
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