The correct engineering concept should be using a correct composition design method to further raise the toughness under the prerequisite of obtaining a high hardness.
正确的工程理念是在获得高硬度的前提下，通过采用正确的成分设计方法，进一步提高韧性。
The correct engineering concept should be using a correct composition design method to further raise the toughness under the prerequisite of obtaining a high hardness.
正确的工程理念是在获得高硬度的前提下，通过采用正确的成分设计方法，进一步提高韧性。
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