本文通过对裂缝修补机理和修补时机的分析，得出了裂缝修补时对裂缝的开槽槽壁和灌缝材料的要求以及最佳的灌缝时间。
According to analyze cracks repair mechanism and repair time, obtain the request of the cracks slot wall and patching material when crack patching and the best patching time.
科学家还没有最后确定相关机理，但已经得出了一些看似可信的解释。
Scientists have yet to pinpoint the mechanisms involved but have come up with several plausible explanations.
根据推导出的公式估算，得出了在现有条件下激光驱动的基本机理是光的热效应的结论。
According to the formulas deduced, it is concluded that the main mechanism of the laser driving is thermal effect under present conditions.
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