以下为句子列表：
英文: Abstract: The micro-mechanism of short crack and the influence of micro-structures on short crack propagation have been investigated by OM，SEM and TEM for a LY12CZ Aluminium alloy.
中文: 文摘:通过扫描电镜、透射电镜、光学金相等手段对LY12CZ铝合金疲劳短裂纹的微观机制进行了分析研究，结果表明，材料的微观组织对短裂纹扩展行为有很大影响。
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英文: Abstract: The process of thermal fatigue crack propagation on the surface of steel bonded carbide GJW35 under the action of thermal stress has been observed.
中文: 文摘:观察了在热应力作用下GJW35钢结硬质合金表面热疲劳裂纹扩展过程。
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英文: Bond between the fiber reinforced plastics (FRP) bars and concrete is very important to bearing capacity, crack propagation of concrete structures and so on.
中文: 摘要纤维塑料筋与混凝土的粘结强度大小直接关系到构件的承载能力、裂缝开展及其它性能等。
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英文: The directional alignment of crystal, on the one hand, effectively controls crack propagation paths and increases strength; on the other hand, induces anisotropy.
中文: 云母晶体的定向排列可有效控制裂纹走向，显著提高其强度，也导致材料的各向异性。
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