The researchers observed that a specific type of boundary called a coherent twin boundary (CTB) has a double role in fracture mechanism.
研究人员发现一类被称作共格孪晶界（CTB）的特殊的晶界。
The researchers observed that a specific type of boundary called a coherent twin boundary (CTB) has a double role in fracture mechanism.
研究人员发现一类被称作共格孪晶界（CTB）的特殊的晶界。
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