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微动磨损
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fretting wear
微动磨损
在机械振动、疲劳载荷、电磁振动或热循环等交变载荷作用下,接触面间发生振幅极小的相对运动(位移幅度一般为微米量级)而引起的磨损。
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ancient Egyptian architecture
ancient Egyptian costume
Ancient Egyptian gardens
Ancient Egyptian gold craft
Ancient Egyptian Hieroglyphic
ancient Egyptian law
Ancient Egyptian tomb painting
Ancient Egyptian tomb relief
Ancient Emperors
ancient ethnic migration
ancient farming system
ancient farming techniques
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Ancient Fu
ancient ginkgo at the Tianshidong Taoist Temple of Dujiangyan City
ancient ginkgo group in Pan County
Ancient Ginkgo in Changshun
Ancient Ginkgo in Fuquan City
ancient ginkgo in Jiyuan
ancient ginkgo in Lantian City
Ancient Ginkgo in Yingjing County
Ancient Ginkgo in Zhaogong Temple, Dujiangyan City
Ancient Ginkgo Tree at Mituo Temple in Qionglai
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