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natural aging
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natural aging
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natural aging
自然时效
通过把机械零件曝露于室外自然环境下,经过长时间风吹、日晒、雨淋和季节变化,给零件造成多次反复的温度应力过载,促使残余应力发生释放而使尺寸获得稳定的方法。是古老的时效方法。
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extra military provisions for field work
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extranodal NK/T-cell lymphoma,nasal type
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extranuclear inheritance
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Extra Officials
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Extraordinary Chambers in the Courts of Cambodia
extraordinary cohomology theory
extraordinary divisor of the discriminant
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extraordinary homology theory
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Extraordinary Meeting of Members from KMT Central Excecutive Committee and Supervisory Committee
Extraordinary Optical Transmission
extraordinary ray
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extraordinary Young's double-slit interference of plasmon
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