试验不仅实现了应变率逐步变化加载过程，同时也实现了蠕变加载和应力松弛过程。
The strain rate was changed stepwise several times; and stress relaxation tests and a set of creep tests were performed during otherwise monotonous loading at a constant strain rate.
试验不仅实现了应变率逐步变化加载过程，同时也实现了蠕变加载和应力松弛过程。
The strain rate was changed stepwise several times; and stress relaxation tests and a set of creep tests were performed during otherwise monotonous loading at a constant strain rate.
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