crystal symmetry 中文意思是什麼

crystal symmetry 解釋
晶體的對稱性
  • crystal : n 1 結晶，（結）晶體；晶粒；水晶（＝rock crystal）；石英。2 【無線電】晶體。3 結晶玻璃；雕玻璃；...
  • symmetry : n. 對稱；勻稱；調和；勻稱美。 bilateral symmetry 左右對稱。 radial symmetry 輻射對稱。
  1. The results indicate that in niobate glasses, as the concentration of nb2o5 increases, the covalence becomes strong, the symmetry becomes low and the electron - phonon coupling becomes strong, thus the lifetimes become short, the nonradiative transition processes and the temperature - quenching become strong and the value of crystal field parameter b20 becomes small

    （ 6 ）研究了妮硅與妮磷系列玻璃發光特性與組份的關系，發現隨著nbzos濃度的增加， eu一o鍵共價性增強，局域環境對稱性降低，電一聲子禍合增強從而導致sd 。
  2. Consisting of the protracting graph of hydrogen - like atom ' s angle distributing, computer simulation of the symmetry of molecular orbital and chemical reaction mechanism, showing the molecular point group and symmetry element, computer simulation of molecular vibration, bravias ' s crystal lattice and their transforming, extracting of plane periodic lattice, extracting of solid periodic lattice, close packing of isometrical pellet and the structure of simple mental substance, close packing of unequal pellet and crystal structure of representative ionic crystal, computer simulation of phase analysis by x - ray diffraction

    內容包括類氫原子角度分布圖的繪制，分子軌道對稱性和反應機理的微機模擬，分子點群和對稱元素顯示，分子振動運動的微機模擬，布拉維晶格和晶格轉化，平面點陣抽取，立體點陣抽取，等徑網球的密堆積和金屬單質結構，不等徑圓球密堆積和典型離子晶體結構， x射線多晶衍射的微機模擬十個子模塊。
  3. I find it is useful to create photonic crystals with big complete forbidden bands by changing the translational symmetry of the photonic crystal

    我在這篇論文中把破壞簡並製造大的完全禁帶的問題轉化為改變光子晶體平易對成性問題。
  4. It is shown that with increasing doped value x, structures of the crystals change its low symmetry into high symmetry and doping with praseodymium can induce larger crystal structure distortion than other elements

    發現塊材樣品隨摻雜量x增加，晶體結構由低對稱向高對稱性轉變。通過摻雜pr元素可以引起晶格較大畸變。
  5. Systemic research including the influence of the crown ether ring ' s symmetry, the size and the conformation on the liquid - crystalline behavior have been done in this paper. the synthesis way and method were improved. from the experimental results, it was found that : 1, compounds 2, 4, 16, 17 and 18 have liquid crystal properties

    優化和改進了合成路線及方法，對席夫堿型液晶冠醚，因取代基的大小、冠醚環的大小和冠醚環的對稱性以及不同結構的順反構型對液晶性能的影響等諸方面進行了較系統的研究，取得了一系列具有規律性的結果。
  6. Decreasing cell thickness will increase the influence of surface interaction to mid - cell phase transition, and increase the temperature, anchoring field strengths region for biaxial phase. at very high value of hc, phase symmetry in mid - cell lags behind that in surface. keywords : liquid crystal, phase transition, surface energy

    對有限厚度液晶盒，減少盒厚可增加表面相互作用對系統的影響，使雙軸相所在溫度區域增加，表面與盒中心液晶的對稱性並非總是同步，當| h _ b |較大時，盒中心液晶雙軸相的對稱性明顯滯後於表面。
  7. Having developed two theorems in the present thesis on the degeneracy properties of the photonic crystal in the super cell, i can give how the degeneracy will change in the band structure of the photonic crystal corresponds to the change of the translational symmetry of the photonic crystal

    為了研究平易對稱性對光子晶體頻帶的影響，我在超包（ supercell ）中詳細研究了頻帶簡並的變化，並發展了幾個決定這些簡並變化的定理。
  8. During recent 30 years, the blue phase of liquid crystal has attracted much attention. the physical nature of bpi ( the first subphase of blue phase ) and bpii ( the second subphase of blue phase ) have the symmetry of space group

    近30年來，液晶藍相受到廣泛的關注，研究表明藍相一相（ bp ）和藍相二相（ bp ）的物理性質有空間群對稱性。
  9. Many protective and monitoring functions are integrated in the system, such as pilot circuit monitoring, earth - fault monitoring, short circuit protection, over - load protection, phase symmetry and phase loss monitoring, over voltage protection, under voltage protection, motor thermal monitoring and so on. all measuring results, fault states, fault parameters and error messages of six motors controlled by the sys tem are sent to the liquid crystal display module via the existing serial data connection

    該系統能自動轉換控制方式，具有漏電、短路、過載、斷相、欠壓、過壓、過熱等保護功能，通過觸摸式液晶顯示系統，不僅能顯示各路負荷的工作狀態和工作參數，而且能記憶其故障狀態和故障參數。
  10. A construction mystery of snowflakes is the average hexagonal shape, which may contain as many as 100 million or more water molecules. in certain conditions, the growing process proceeds in both perfectly horizontal and perpendicular directions, thus building a broader and thicker crystal in hexagonal symmetry

    它那巧奪天工的六角體成為了雪花生長的奧秘，每個雪花有著至少上億個水分子，冰晶就是從水平和垂直的方向，生長成更大更厚的晶體了
  11. The formulae of crystal field potential for 4f electron with different symmetry

    電子晶場勢在不同對稱性下的表示
  12. Having as many planes as required for complete symmetry in a given crystal system

    全面的，全對稱晶形的具有在給定的晶體系統中全面對稱的全部平面的
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