名词
中文翻译：粒间裂纹
同义词：
['grain boundary crack', 'intergranular fissure']
例句：
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1. Thegrain size of the material is an important factor in determining its mechanical properties.
材料粒径的大小是决定其机械性能的重要因素。
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2.This type of crack is often found in concrete structures due to thermal expansion and contraction.
这种裂纹通常在混凝土结构中出现，是由于热胀冷缩造成的。
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3.In order to improve the durability of the material, it is necessary to prevent such intergranular cracks.
为了提高材料的耐久性，有必要防止此类粒间裂纹。