以下为句子列表：
英文: It is observed that considerable liquation microcracks and some other microffissures called solid-state microcrack initiate in the regions nearby the fusion line and propagate across the grain boundary.
中文: 研究发现，熔合线附近的热影响区产生大量液化裂纹和沿晶扩展的固相裂纹。
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