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- Benzoxazole, where the oxazole is fused to another aromatic ring. 苯并-{惡唑}-，-{惡唑}-于其他環(huán)相連。
- Elimination of an alkyl chain substituted on an aromatic ring results in the appearance of free radicals. 在一芳香環(huán)上一個(gè)取代烷鏈的消失，結果出現自由基。
- Most proteins have amino acids with aromatic ring, so they have yellow reaction. Phenylalanine is not easy to nitrify, so it is necessary to add in a little vitriol oil. 多數蛋白質(zhì)分子含有帶苯環(huán)的氨基酸，所以都會(huì )發(fā)生黃色反應。苯丙氨酸不易硝化，需加少量濃硫酸后才能夠發(fā)生黃色反應。
- The energy loss, combined with angular-momentum redistribution, causes a dense ring system to flatten. 由于能量散失再加上角動(dòng)量重新分布，稠密的行星環(huán)系統就變得更為扁平。
- Open ring systems can avoid electromagnetic loop. 開(kāi)放的環(huán)系統，可避免電磁環(huán)。
- Abnormal hydrogenation of an aromatic ring of hainanensine analogue is reported. The possible mechanism for this reaction is provided. 報道了海南粗榧新堿類(lèi)似物芳環(huán)的一種反常氫化反應，并提出了可能的反應機理。
- The chemoselectivity of the reaction is noteworthy, as the presence of a halide (bromide or chloride) on the aromatic ring furnishes the triazole 5 as the sole reaction product. 值得注意的化學(xué)反應的;作為一個(gè)在場(chǎng)的鹵化物(溴化物或氯化物)的芳香環(huán)唑5作為唯一證據的反應產(chǎn)物.
- Conclusion Alar cartilage-muscle ring system is an important structure for the lower part of the nose. 結論鼻翼軟骨肌肉環(huán)是外鼻下端重要的解剖結構。
- In this study, a Plesiomonas-derived chlorocatechol 1, 2-dioxygenase (TfdC) gene (tfdC), capable of cleaving the aromatic ring, was introduced into Arabidopsis thaliana. 在此項研究中，我們利用鄰單胞桿菌來(lái)源的氯代鄰苯二酚1，2雙加氧酶基因tfdC改造擬南芥，探索植物降解芳香族污染物。
- Pioneer photographed Saturn's ring system from a unique position with the Sun behind the planet. 先驅者從一個(gè)得天獨厚的位置上拍攝了土星的光環(huán)系統。其時(shí)，太陽(yáng)正處于該行星的背后。
- In the picoline pyrolysis experiment, the methyl disengages from aromatic ring to form methane firstly, then the following reaction of the aromatic ring is similar to pyridine. 甲基吡啶的熱穩定性比吡啶差，熱解時(shí)甲基首先脫離芳香環(huán)進(jìn)入氣相，隨后芳香環(huán)的反應途徑和吡啶類(lèi)似；
- Enclosed brush/slip ring system extends brush life by eliminating dust and dirt infiltration. 封閉式電刷系統，防塵和防臟物進(jìn)入，延長(cháng)了電刷壽命。
- The observation can be due to the presence of extended planar aromatic ring(s) in these ligands that could enhance their DNA intercalating binding ability. DPPZ系列配合物與DNA的結合常數比TATP系列配合物的結合常數平均大一個(gè)數量級，表明插入配體的平面越大，與DNA的結合能力越強。
- A new method not requiring ring system information for finding SSSR based on generating tree, chord and path analysis is set up. 本文提出一種基于生成樹(shù)、弦和路徑長(cháng)度的環(huán)系最小環(huán)最小集識別方法,不需事先進(jìn)行環(huán)系識別。
- Aromatic rings can be joined at a pair of adjacent carbons to yield compounds such as naphthalene, anthracene and chrysene. 芳環(huán)能在一對相鄰碳上結合，生成萘、葸和?傅然0合物。
- If you have a telescope magnifying at least 30-power, you'll be able to glimpse the famous ring system, which now looks like a bright line that bisects Saturn's disk. 如果你有一個(gè)最低放大30倍的望遠鏡,那么你就能夠一睹著(zhù)名的環(huán)系統,該環(huán)系統現在看上去象是一條將土星的圓盤(pán)一分為二的明亮線(xiàn)條。
- Data mining system will become a self-adapted closing ring system on the base of the Integral Application of Fuzzy Cluster Analysis and Fuzzy Model Discernment. 通過(guò)模糊聚類(lèi)分析和模糊模式識別的組合運用,使數據挖掘系統成為一個(gè)自適應的閉環(huán)系統。
- Like the amino group, the phenolic group powerfully activates aromatic rings toward electrophilie substitution, and in essentially the same way. 對于親電取代反應，酚基基本上以同氨基一樣的方式使芳環(huán)強烈活化。
- Polyaramide with easily rotational backbone has higher gas permeability, For two polymers with the samebackbone, gas permeability is higher for one with methyl side group on its aromatic ring. 高分子主鏈的化學(xué)結構相同，苯環(huán)上帶有側甲基的聚合物有高的氣體透過(guò)系數；
- SSSR identification of two structures with complex ring systems is illustrated. 給出了2個(gè)包含復雜環(huán)系的化學(xué)結構作為最小環(huán)最小集識別的例子。
