双语例句
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The twin boundaries act as strong obstacles to the dislocation motion, so lead to higher strain-hardening.
孪晶界阻碍位错运动导致高的加工硬化率；
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After welding, a large volume fraction of tiny M6C precipitates in the matrix is discontinuously dispersed in the grain boundaries and twin boundaries, and the original carbides become bigger.
焊后，大量M6C在晶内弥散析出，在晶界和孪晶界上不连续析出，原有的碳化物长大。
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