covalent bond 中文意思是什麼

covalent bond 解釋
單鍵
  • covalent : 共階的
  • bond : n 1 結合（物），結合力，黏合（劑），聯結。2 束縛，羈絆； 〈pl 〉 拘束；鐐，銬。3 契約，契約義務，...
  1. The results of x - ray diffraction showed that there somehow existed some mutual influence between the two components in sf / pego blend membranes, which restrained silk crystallize but induced the formation of silk ii in blend films. the result of thermal analysis indicated that the thermal stability of silk fibroin in the blend membranes was improved, which was attributed to the addition of pego. the amino acids analysis showed the pego and silk fibroin combined with the covalent bond, and the dissolubility of silk fibroin in membranes was decreased

    X射線衍射和紅外光譜分析結果表明pego改性絲素膜中，成膜的兩種組分間存在某種相互作用， pego抑制了絲素silk結晶，隨分子量的增加，促進了絲素silk結晶；熱分析結果表明pego的加入提高了絲素的熱穩定性；氨基酸分析表明pego與絲素發生了共價交聯，膜中絲素在熱水中的溶失率大大降低。
  2. A competitive binding assay used to determine hapten iaa with the aid of hrp - iaa conjugate has been developed. it was based on the ordered, stable mercapto self - assembled monolayer formed on gold surface, which immobilized igg with covalent bond

    方法基於金基底上形成的均一、穩定、有序的巰基乙酸自組裝單層膜，在edc 、 nhs活化下，能以共價方式固定抗體。
  3. ( c ) the total energy of manganate - oxides materials decreases after intercalation lithium. the electrovalent bond weakens and the covalent bond strengthen between manganese and oxygen due to ion polarization effect, which makes the spinel structure more stable

    （ 3 ）對于錳系材料嵌鋰后，體系總能量降低；鋰離子的靜電作用和極化作用，使錳氧之間的離子鍵成分減小，共價鍵成分增加，整個尖晶石骨架結構更加穩定。
  4. Further study is needed before the origin of the covalent bond can be considered a settled question.

    需進一步深入研究方能解決共價鍵的起源問題。
  5. They stick together by a strong bonding called covalent bond

    它們以一種很強的鍵- -共價鍵，黏合在一起
  6. O. they stick together by a strong bonding called covalent bond

    O的原因.它們以一種很強的鍵-共價鍵，黏合在一起
  7. Disulfide bridge in proteins, a covalent bond formed between the sulfhydryl ( - sh ) groups of different cysteine molecules. such bridges are important in stabilizing the tertiary structure of peptides and proteins

    二硫橋：在蛋白質中兩個半胱氨酸殘基的兩個巰基之間形成的共價鍵。這樣的結構對于維持多肽和蛋白質三級結構的穩定有重要的作用。
  8. Considering when most of different atoms combine together, the covalent bond and the electrovalent bond are concomitant

    考慮到大多數異類原子結合是採取共價結合與離子結合之間的過渡形式。
  9. By home analyzing the experiment result, we think that the covalent bond is more than the electrovalent bond in y - fe _ ( 2 ) o _ ( 3 ) crystallites. it is the dominating reason that the dependence of y - fe _ ( 2 ) o _ ( 3 ) crystallites grin size on lattice constant is differ from one of the ionic crystallites

    通過對實驗結果的進一步分析，我們認為其主要原因是在丫一fezo3中原子之間結合的共價性超過了離子性，因而導致了它們的晶格常數隨晶粒線度的變化趨勢和離子晶體正好相反。
  10. The material is to apply hydrogenization to turn aliphatic covalent bond into saturation, featuring it with good weatherability, ultra - violet resistance, oxidization resistance, ozone resistance and heat resistance

    只要是有能力的員工，以認真勤奮的態度工作，必能在本公司找到個人發展空間及得到合理的回報! .
  11. It was revealed that the hexagonal order was destroyed and the phase transition from hexagonal to amorphous structure with the increment of manganese ion, and with the appropriate neutral hexadecylamine ( hda ) with cetyltrimethylammonium bromide ( ctab ) as mixed template, mn - mcm - 41 was synthesized with well uniformly pore size and hexagonal mesostructure for the additional function of n - metal covalent bond, and the ordered structure was mediated by the influence on the packing parameter

    表明隨著mn ~ （ 2 + ）引入量的增加，導致介孔長程有序結構的破壞，最終引起由六方相向無定型相的轉變。適量中性表面活性劑十六胺的引入以形成混合模板劑，通過在原有靜電作用基礎上增加n -金屬鍵作用，合成結構較為完整的錳摻雜mcm - 41材料。
  12. In this thesis, several new fluorescence carriers have been synthesized bearing a carbon chain with a terminal double bond introduced into the molecule and copolymerized with a monomer under uv irradiation on the silanized glass or quartz disk. the sensors prepared were studied. covalent immobilization effectively prevents the leakage of the carrier dye from the sensor membrane, a phenomenon that shortens the lifetime of ordinary optical sensors

    本論文合成了幾種含末端雙鍵、可共價固定的新型熒光化合物，並以此作為熒光指示劑，與膜基質單體在光引發劑作用下發生光聚反應共聚在經過硅烷化處理的石英或普通玻片上製成光極膜，制備了對一些物質有響應的熒光化學傳感器。
  13. Study on non - covalent bond complex of rhfkbp12 and its small molecular ligands with nerves growth action by esi - ms

    12與新型神經生長促進劑形成非共價鍵復合物的電噴霧質譜研究
  14. Covalent bond a chemical bond in which one or more pairs of electrons are shared between two atoms

    共價鍵：一般指兩個原子接合時，通過形成共有電子對而產生的化學鍵。
  15. In a covalent bond, two atoms share a pair of electrons, knitting together the respective electron orbitals. two electron pairs are shared in a double bond

    在一個共價鍵中，兩個原子共用一對緊密結合在各自電子軌道上的電子；在一個雙鍵中，有兩對電子共用。
  16. The following results are achieved : ( 1 ) in accordance with the empirical electron theory of solids and molecules, considering the number of covalent bond pairs on the strongest bond in a segregation structure na, the elements for matrix - strengthening can be chosen. ( 2 ) on the basis of the available phase - equilibrium thermodynamics calculation of alloy system and phase diagrams, which have been worked out, the contents of alloy elements can be identified with reference to the types, quantity and phase - transformation of carbides. ( 3 ) both the values relating to toughness ( including bending strength, yield strength, impact value of unnotched samples ) and hardness of new dm9 die steel are higher than those of crl2mov die steel

    結果得出： （ 1 ）根據固體與分子經驗電子理論，利用偏聚結構單元的最強共價鍵上的共用電子對數n _ a ，可以選擇工模具鋼基體相的強化元素； （ 2 ）根據合金系相平衡熱力學計算及已有的相圖，可以碳化物類型、數量及其相變確定合金元素含量； （ 3 ）新型dm9鋼在強韌性（抗彎強度、屈服強度、無缺口沖擊值）和硬度方面均高於cr12mov鋼； （ 4 ）以dm9鋼與6crw2si 、 7cr2wmovsi （ dm7 ） 、 h13和cr12mov四種模具鋼的實驗比較，進一步驗證了上述冷作模具鋼合金設計方案是合適的。
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