extreme deformation 中文意思是什麼
extreme deformation
解釋
極端變形- extreme : adj 1 極端的；過激的 （opp moderate）。2 極限的，非常的。3 盡頭的，末端的。4 〈古語〉最後的，臨終...
- deformation : 變形,走樣
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Generally, the gravity introduced deformation of an optical lens with smaller aperture ( < ( 100mm ) within visible band is about ( / 20 even less than this value. for general optical lens, this error level can be entirely neglected. but for the high - accuracy optical system within extreme ultraviolet band, the error caused by gravity deformation will lead to imaging quality degradation
本文較為系統地介紹了光學鏡頭的裝配與調校方法，一般地講，在可見波段內，光學鏡片口徑較小（ < 100mm ）時，重力引起的變形一般/ 20左右甚至更小，對於一般的光學鏡頭這樣量級的誤差完全可以忽略，但在極紫外短波長的高精度光學系統中重力變形帶來的誤差會使光學系統成像質量下降。 -
The extreme effects of sand mining on local deformation of riverbed and evolution of river stretch in typical river sections such as straight river section, river bend and river fork are experimentally studied in micro - scale loose bed hydraulic model
摘要採用微尺度動床河工模型試驗的方法研究了在順直、彎道與分汊等典型河道不同部位進行大規模采砂對河床局部變形及對河段變形的極限影響。
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