聚場透鏡 的英文怎麼說

中文拼音 [chǎngtòujìng]
聚場透鏡 英文
collecting lens
  • : 動詞(聚集; 聚積) assemble; gather; get together
  • : 場Ⅰ名詞1 (平坦的空地 多用來翻曬糧食 碾軋穀物) a level open space; threshing ground 2 [方言] (...
  • : Ⅰ動詞1 (滲透; 穿透) penetrate; pass [seep] through 2 (暗地裡告訴) tell secretly; let out; lea...
  • : Ⅰ名詞1 (鏡子) looking glass; mirror 2 (幫助視力或做光學實驗的器具) lens; glass 3 (姓氏) a s...
  • 透鏡 : [物理學] lens; optical lens
  1. ( 1 ) an optical technique is presented to quantify the creep crazing damage in stressed transparent glassy polymeric sheet of pmma. craze area density in this article is defined by ratio of crazing area and the overall area of the region selected. the specimens were loaded for a defined period of time under creep condition with room temperature, by optical microscope the evolvement of craze density varying with stress and time is obtained

    Pmma ( polymethylmethacrylate )是一類重要的高物材料,在應用上屬于用量大、使用范圍廣的一類通用材料,本文選用pmma為主要研究對象,主要研究成果如下: ( 1 )用顯微明玻璃態材料pmma蠕變條件下的銀紋損傷引發和演化進行了實驗觀測,將銀紋所佔面積和所取圖象視總面積的比值定義為銀紋密度,得到了銀紋密度隨時間和應力變化的演化方程。
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