【Key words】 Northeast China； Mean wind speed； Strong wind； Climatic change； Formative causes；
基于6个网页-相关网页
theoretical formative causes 理论成因
analysis of formative causes 成因分析
features and formative causes 特点和原因
current situation and formative causes 现状和成因
formative time and causes 形成时间和原因
At last, vacuum circuit breaker switching capacitance group overvoltage formative causes and electrode refining for lessening reignition are discuss.
最后简要分析了真空断路器开断电容器组过电压的形成原因及为减少重燃的电极老炼措施。
According to cracks of air entraining concrete blockwork, it introduces primary features of it, formative mechanism and causes of it are discussed, then puts forward relative solutions.
针对加气混凝土砌块墙体裂缝，介绍了加气混凝土砌块的主要特点，探讨了加气混凝土砌块墙体裂缝形成的机理以及产生的原因，并提出了相应的解决办法。
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