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- Phosphoric acid produced by the wet process is in the ortho form. 用濕法生產(chǎn)的磷酸呈正磷酸狀態(tài)。
- The ortho cone helicoid was used interrsect intercept by the ortho cone helicoid and the cylinder. 正圓錐螺旋面是正圓柱螺旋面被同軸正圓錐面截得。
- Ortho Biotech, for example, recently changed one of the chemicals added to its erythropoietin alpha medicine as a stabilizer. 舉例來(lái)說(shuō)，美國奧多生物科技公司最近換了加在紅血球生成素里頭的一種安定劑。
- For a disubstituted complex, MA4B2, the planar arrangement gives three isomers, the familiar ortho, meta, and para arrangements of organic chemistry. 對于雙取代絡(luò )合物MA4B2,其平面排列有三個(gè)異構體,常見(jiàn)的為有機化學(xué)中的鄰位、間位和對位排列。
- In this paper,ortho nitrobenzaldehyde is prepared with indirect oxo-process for o nitrotoluene. 以鄰硝基甲苯為原料，采用間接氧化法制備鄰硝基苯甲醛。
- Side view render of a Normal Map made with an Ortho camera. The same cameraposition as in the previous picture, less perspective distortion. 攝像機的法線(xiàn)映射的邊延視圖渲染。
- The result shows that the cocatalyst system is especially effective in regioselective ortho dichlorination of the substrate. 結果表明，硫化物-三氯化鋁共催化劑能顯著(zhù)提高該底物鄰二氯代的區域選擇性。
- Donors such as amine and phenolic groups,when positioned ortho to a nitro group,are always involved in intramolecular hydrogen bonding. 在硝基鄰位上存在的氫鍵給體如胺基,酚基時(shí),總與硝基形成分子內氫鍵。
- The reaction tolerates sensitive moieties (methyl esters or nitriles), ortho substitution, and heterocycles (i.e., 2-furan). 反應靈敏萘容忍(甲基酯或腈);替代鄰、雜環(huán)(即2-呋喃).
- The separation of meta nitrochlorobenzene from the waste fluid of para ,ortho nitrochlorobenzene production was investigated in this paper. 探討、分析了對、鄰硝基氯苯生產(chǎn)廢料中間硝基氯苯的可能分離方法,確定采用恒沸減壓精餾法為最佳。
- The conjugated double bond in tung oil molecular with high activity can take place substitution reaction with one of ortho or para hydrogens of phenol. 桐油的共軛雙鍵具有極強的反應活性，易與苯酚芳環(huán)上鄰或對位的活性氫發(fā)生傅氏取代反應。
- In petroleum &chemical industry, Ortho provided several process-control systems, emergency shutdown systems(ESD) and instruments related in dangerous areas. 在石油化工行業(yè)，昊圖公司為數百套重要和危險的裝置提供了過(guò)程控制系統、緊急停車(chē)系統和相關(guān)儀器儀表。
- Moreover, we incorporated different functional groups on ortho and meta positions of benzothiazole in order to understand the electronic effect on the metal complexation. 我們在配基設計上引入不同取代基，除了研究電子效應的影響外，更希望可成功得到單晶以進(jìn)行更深入的研究。
- Objective The Purpose of this study was to compare a new Light-cured resin reinforced glass ionomer(Fuji Ortho Go, Japan) with a traditional composite resin. 目的了解光固化樹(shù)脂加強型玻璃離子水門(mén)汀在不同條件下的粘結性能,探討一種更簡(jiǎn)便,不太注意污染的粘結方法。
- The results revealed that the components with bicyclic ortho ester had expansibility in the ring opening polymerization by initiation of cationic compounds. 對膨脹聚合反應研究發(fā)現,帶有膨脹基團雙環(huán)原酸酯的材料在陽(yáng)離子引發(fā)劑存在下開(kāi)環(huán)時(shí)具有膨脹特性。
- In the related "amide route" starting from 2-chloroisonicotinic acid, 41 ,a secondary amide directing group was used to facilitate the ortho lithiation of the pyridine 3-position. 在有關(guān)"酰胺三號"由2-氯酸、41、次要酰胺導演組用的鋰方便鄰吡啶3-立場(chǎng).
- Then,the regioselective ortho lithiation of alkyloxypyridine bromide was further performed to produce the diphenylphosphine alkyloxypyridine bromide derivatives(3a,3b and 6a). 以氯代吡啶為原料,經(jīng)烷氧基取代,選擇性單溴代,合成了系列烷氧基溴代吡啶,最后利用鋰化反應的區域選擇性,制備了二苯基膦烷氧基溴代吡啶;
- Catalytic nitration of toluene occurs by use of nitric acid in the presence of bentonite metal nitrates with useful para selectivities,up to a para to ortho ratio 1.0. 在皂土硝酸鹽催化下，甲苯能被濃硝酸對位選擇性硝化，對鄰硝化產(chǎn)物比率達1．0以上。
- The reason is that the electron withdrawing and donating of two substituting groups result in the changes in the density of electron cloud of chemical bonds in ortho position. 這是由于兩個(gè)取代基的吸或供電子引起了相鄰化學(xué)鍵的電子云密度發(fā)生變化,使旋光度相應變化,從而導致旋光性。
- Dy ea due to elevated pulmonary venous pre ure and pulmonary edema is increased in the recumbent position and decreased by sitting or standing （ortho ea）. 由肺水腫和肺靜脈壓升高引起的呼吸困難在臥位時(shí)加劇，在坐位,立位（端坐呼吸）時(shí)減輕。
