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自然时效
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自然时效
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时效
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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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earth flattening
earth forest
Earth Forest-Guge Scenic and Historic Area
earth free oscillation
earthgas nanometal survey
earthgas survey
earth-geomagnetic navigation
Earth God opera
earth gravitational perturbation
earth gravity field
earth gravity potential model
earth-grazer
earth-grazing asteroid
earth, ground
earth-inductor
earthing
earthing of the railway vehicles
earthing switch for busbar
earth-ionosphere waveguide radio wave propagation
earth-light
earthlight
Earth-like exoplanet
Earth-like planet
earthly branch-preion of point selection
earth magnetic field
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