C - covalence 中文 - EN166

covalence n.【化學】共[協]價。adj.-valent

covalence electron
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 。
These thin films exhibit physical properties different from those bulk crystals and per molecule . in particular , when some functional biomolecule was imbedded by way of covalence or noncovalence on the surface of the films , the films have many functions of biological membrane . these functions made supramolecular assembly technology have important application prospects 這種技術能夠賦予該有機分子既有別于體材料又不同于單個分子的性質，特別是當在分子薄膜表面以共價或非共價的方式嵌入某種功能性的生物分子時，這種薄膜就會具有仿生膜的功能，這種功能使得超分子組裝技術在生物傳感器領域具有重要的應用前景。
In this thesis , the oxygen sensitive materials and glucose sensitive materials had been developed by thermo - polymerization method including carrier covalence method and carrier covalence - cross linking method , and the properties had been investigated using the detection experiment of oxygen and spectrophotometer , at the mean time , the applications of oxygen sensitive materials in fiber optical gaseous oxygen sensor and fiber optical dis solved oxygen sensor , and that of biology sensitive materials in fiber optical dextrose sensor had been studied in this paper . major content of this work includes five aspects as follows : ( 1 ) . oxygen sensitive materials had been prepared by carrier covalence method , and the preparation mechanism of the materials had been investigated by fi - ir , sem , and the detection experiment of oxygen 本論文主要包括以下五個方面的內容： ( 1 )載體共價法制備氧敏感材料：通過紅外光譜、掃描電鏡圖譜和氧測試實驗探討該氧敏感材料的制備機理，通過氧測試實驗評價該氧敏感材料的氧敏感性和穩定性，同時研究了各種因素對該氧敏感材料性能的影響( 2 )載體共價?交聯法制備氧敏感材料：通過紅外光譜、掃描電鏡圖譜和氧測試實驗探討該氧敏感材料的制備機理，通過氧測試實驗和分光光度計評價該氧敏感材料的氧敏感性和穩定性，同時研究了各種因素對該氧敏感材料性能的影響( 3 )氧敏感材料在光纖氣態氧傳感器中的應用：該傳感器的響應時間為10s ，檢測下限為5ppm ，檢測精度為0 . 5 ，具有較好的重復性和穩定性，遲滯較小，使用壽命至少為1年，適合各種環境下氣態氧濃度的檢測。
The ability of carbon to form stable compounds in such astonnishing numbers arises in that it utilizes its four valence electrons completely in the establishment of four covalence , its valence shell becomes saturzted 試譯一下：碳能組成（有著）如此驚人數量的穩定的化合物在于它在四價共價健的建立中充分利用自己的四價電子，它的化學價層才能得以飽和。
Interfacial atoms diffusion or covalence by a circulated - argon ion bombardment process could improve the adhesion strength between the coatings and the uranium substrate 循環氬離子轟擊鍍方法可促進使膜-基界面原子間的擴散或鍵合，有利于提高膜-基結合強度。