Because hydraulic universal testing machine does not control speed of loading accurately, it does not with national criterion of testing condition.
老式液压万能试验机，因不能对加载速率准确控制，已不符合国际标准对实验条件的规定。
Because hydraulic universal testing machine does not control speed of loading accurately, it does not with national criterion of testing condition.
老式液压万能试验机，因不能对加载速率准确控制，已不符合国际标准对实验条件的规定。
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