削蝕準平原 的英文怎麼說

中文拼音 [xiāoshízhǔnpíngyuán]
削蝕準平原 英文
truncated upland
  • : 削動詞1. (用刀斜著去掉物體的表層) pare [peel] with a knife 2. (乒乓球的一種打法) cut; chop
  • : Ⅰ動詞1. (損失; 虧耗) lose 2. (腐蝕) erode; corrode Ⅱ名詞(天體現象) eclipse
  • : Ⅰ名詞1 (標準) standard; guideline; criterion; norm 2 (目標) aim; target Ⅱ動詞1 (依據; 依照)...
  • : Ⅰ形容詞1 (沒有高低凹凸 不頃斜) flat; level; even; smooth 2 (高度相同; 不相上下) on the same l...
  • : Ⅰ形容詞1 (最初的; 原來的) primary; original; former 2 (沒有加工的) unprocessed; raw Ⅱ動詞(原...
  1. This paper mainly aims at the strategic demands for large - aperture lightweight mirror proposed by high - tech development. its main research contents are : select material blank for lightweight mirror according to physical and chemical properties of optical glass ; analyze and calculate the deformation quantity of the mirror with finite element method ; design and optimize mirror body structure of 400 lightweight plane mirror and 450 lightweight spherical mirror, analyze glass cutting principle, design specisl - use grinding wheel structure, select reasonable technological parameters to implement the processing of weight reduction holes on 400 plane mirror ; analyze etching mechanism of hydrofluoric acid, look for the technological parameters such as the optimal acid concentration and etching time etc. ; eliminate the stress of weight reduction holes and micro - cracks on 400 lightweight plane mirror ; discuss the processing principle and

    本論文的研究主要是瞄國家高技術對大口徑輕型鏡的戰略需求而開展的。主要研究內容是:根據光學玻璃的物理與化學性能,選擇輕型鏡坯材料;用有限元法對鏡子的變形進行分析、計算,找出變形規律,優化設計400mm輕型面鏡、 450mm輕型球面鏡鏡體結構;分析玻璃切理,設計專用磨輪結構,選擇合理工藝技術參數,完成400mm面鏡輕量化減重孔的加工;分析氫氟酸腐光學玻璃機理,尋找最佳酸濃度、腐作用時間等工藝參數,實現400mm面鏡減重孔應力與微裂紋的消除;討論分離器加工理和工藝技術特點,完成400mm面輕型鏡面形加工。
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