carboxylic acid 羧酸。
羧酸。 “carboxylic“ 中文翻譯： adj. (含)羧基的。 “acid“ 中文翻譯： adj. 1.酸味的。 2.【化學】酸的，酸性的。 3. ...“1-aminocyclobutane carboxylic acid“ 中文翻譯： 1-氨基環丁烷羧酸“2 piperidine carboxylic acid“ 中文翻譯： 2-哌啶羧酸“4-cyclohexane-carboxylic acid“ 中文翻譯： 4-環己烷羧酸“8-quinoline carboxylic acid“ 中文翻譯： 8-喹啉羧酸“aldehydic carboxylic acid“ 中文翻譯： 醛基羧酸“aliphatic carboxylic acid“ 中文翻譯： 脂肪族羧酸; 脂族羧酸“aliphatic carboxylic acid esters“ 中文翻譯： 脂肪族羧酸酯“aliphatic unsaturated carboxylic acid“ 中文翻譯： 脂族不飽羧酸“amino carboxylic acid“ 中文翻譯： 氨基羧酸“aminocyclopropane carboxylic acid“ 中文翻譯： 氨基環丙烷羧酸“aminoimidazol carboxylic acid“ 中文翻譯： 氨基咪唑羧酸“aminoimidazole-carboxylic acid“ 中文翻譯： 氨基咪唑羧酸“anthracene carboxylic acid“ 中文翻譯： 蒽甲酸“aromatic carboxylic acid“ 中文翻譯： 芳香族羧酸; 芳香羧酸; 芳族羧酸“benzaldehyde-carboxylic acid“ 中文翻譯： 苯醛甲酸; 苯醛酸“benzene carboxylic acid“ 中文翻譯： 苯甲酸; 苯羧酸“benzophenone carboxylic acid“ 中文翻譯： 二苯甲酮甲酸; 二苯甲酮羧酸; 二苯酮甲酸“brevifolin carboxylic acid“ 中文翻譯： 短葉蘇木酚酸,短葉蘇木酚羧酸; 云實酸“carboline-carboxylic acid ester“ 中文翻譯： 咔啉羧酸酯“carboxylic acid amide“ 中文翻譯： 羧酸酰胺“carboxylic acid anhydride“ 中文翻譯： 羧酸酐“carboxylic acid cation exchanger“ 中文翻譯： 羧酸陽離子交換劑“carboxylic acid derivative“ 中文翻譯： 羧酸誘導劑
Degenerate oligonucleotides to highly conserved regions of cucumis melo 1 - aminocyclopropane - 1 - carboxylic acid ( acc ) oxidase gene were used to prime the amplification of fragment of 128bp by ploymerase chain reaction ( pcr ) in samples of genomic dna from fruit of cucumis melo l . cv hetao flesh , which was cloned into plasmid vector pmd - 18 - t . the clon of antisense orientation were selected , and it was inserted downstream of camv35s promoter and enhancer “ “ of tmv into the plant expression vector pbinyxw , antisence expression vector pbinya was constructed . at the base that pollination and fertilization of cucumis melo l . cv hetao was studied , using pollen tube pathway transformate cucumis melo l . cv hetao , 76 fruit had been obtained , moreover , hardness and content of sugar were analysed 本實驗以河套蜜瓜果肉基因組dna為模板，用甜瓜acc氧化酶基因特異寡核苷酸鏈為引物進行pcr擴增，得到128bp的擴增產物。將得到的擴增產物克隆到質粒載體pmd - 18 - t上，篩選反向克隆，然后將其反向構建到植物表達載體pbinyxw的camv35s啟動子和tmv增強子“ ”的下游，構建成反義表達載體pbinya 。并在對河套蜜瓜授粉受精生物學研究的基礎上，通過花粉管通道法轉化河套蜜瓜，共獲76顆瓜，并進行了硬度和含糖量的分析。 |
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Degenerate oligonucleotides to highly conserved regions of cucumis melo 1 - aminocyclopropane - 1 - carboxylic acid ( acc ) oxidase gene were used to prime the amplification of fragment of 128bp by ploymerase chain reaction ( pcr ) in samples of genomic dna from fruit of cucumis melo l . cv hetao flesh , which was cloned into plasmid vector pmd - 18 - t . the clon of antisense orientation were selected , and it was inserted downstream of camv35s promoter and enhancer “ “ of tmv into the plant expression vector pbinyxw , antisence expression vector pbinya was constructed . at the base that pollination and fertilization of cucumis melo l . cv hetao was studied , using pollen tube pathway transformate cucumis melo l . cv hetao , 76 fruit had been obtained , moreover , hardness and content of sugar were analysed 本實驗以河套蜜瓜果肉基因組dna為模板，用甜瓜acc氧化酶基因特異寡核苷酸鏈為引物進行pcr擴增，得到128bp的擴增產物。將得到的擴增產物克隆到質粒載體pmd - 18 - t上，篩選反向克隆，然后將其反向構建到植物表達載體pbinyxw的camv35s啟動子和tmv增強子“ ”的下游，構建成反義表達載體pbinya 。并在對河套蜜瓜授粉受精生物學研究的基礎上，通過花粉管通道法轉化河套蜜瓜，共獲76顆瓜，并進行了硬度和含糖量的分析。 |
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carboy |
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In order to find replacer for metronidazole and drug selection . some diesters or esters of acids containing nitrogen with metronidazole were designed and synthesized , which have difference in water - solubility . metronidazole was reacted with the corresponding amino or imino multi - carboxylic acid compounds in the presence of acetic anhydride or thionyl chloride or dcc . the intermediate of nitrilotriacetic acid with ac 為尋找羥乙基甲硝唑的替代物，分別采用酸酐法酰氯法或dcc法，將氨基羧酸與羥乙基甲硝唑反應，得到5個親水性不同的單酯或二酯，用ms譜確證了次氨基三乙酸與乙酸酐反應的中間物，并對得到的酯的 |
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This paper designs molecular structure of organic water - repellent admixture . we choose carboxylic acid that possesses amphiphilic molecular structure and sodium carbonate and potassium hydroxide as important raw materials . they carry through soaps turns reaction to synthesize polycarboxylic acid type waterproofing agent 本文通過對有機質防水劑分子結構設計,選擇具有兩親結構的羧酸(酸a 、酸b ) 、無水碳酸鈉、氫氧化鉀為主要原材料,通過皂化反應,合成多元羧酸系防水劑。 |
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In a preferred embodiment , a . alpha . - hydroxy carboxylic acid with a specific chiral configuration is linked by an amide linkage to a . alpha . - amino acid specific with a specific chiral configuration or linked by an amide linkage to a peptide made up of . alpha . - amino acid monomers having identical chiral configurations 主要體現在，含有特定結構的-羥基羧酸與一個含特定結構的-氨基酸以氨基聯接特異結合，或與一個有相同結構的，由-氨基酸單體組成的肽以氨基聯接相連。 |
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Abstract : a novel enzymatic reaction ? ammonolysis was introduced in thenineties . this reaction not only provides a synthetically useful and mild alternative method for the synthesis of amides , but also can be used for the kinetic resolution of chiral alcohols or chiral carboxylic acids . in addition to enantioselective hydrolysis , esterification and transesterification , ammonolysis also shows high enantioselectivity in the resolution of racemates 文摘:酶促氨解反應是20世紀90年代中期發現的一種新型反應,在脂肪酸酰胺的合成、手性藥物（手性酸及手性醇等）的拆分中顯示出巨大的應用潛力，是除立體選擇性水解、酯化、轉酯反應之外的另一具有較大開發應用前景的酶促新型反應。 |
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Hi this thesis , the setting time of various retarders had been tested , in which three retarders with good retarding action , citric acid , sodium tripolyphosphate , bone glue are respectively chosen from three types of retarders , hydroxyl carboxylic acid type , phosphate type and protein type , and the strength and setting time of gypsum added with them are determined . effect of some factors , such as ph value , fineness of hemihydrate , type of gypsum on the retarding action of the retarders is also studied 本文對多種緩凝劑進行凝結時間測試，選擇效果良好的羥基羧酸、無機鹽和蛋白質類型的三種緩凝劑：檸檬酸、多聚磷酸鈉和骨膠，測定它們對石膏凝結時間、強度等宏觀性能的影響，并分別研究ph值、石膏細度和石膏種類等因素對它們的緩凝效果的影響。 |
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In this paper , the new development of research on copolymer scale inhibitor and dispersant was introduced in details from several aspects , such as natural polymer scale inhibitors , carboxylic acid copolymer scale inhibitors , sulfonic acid copolymer scale inhibitors , phosphor - containing polymer scale inhibitors and new green copolymer scale inhibitors etc . . some advices on the development of research on copolymer scale inhibitor were put forward 從天然聚合物、羧酸類聚合物、磺酸類聚合物、含磷聚合物以及新型綠色聚合物等幾個方面，介紹了我國聚合物阻垢劑的研究新進展，并提出其今后發展的一些建議。 |
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Degenerate oligonucleotides to highly conserved regions of cucumis melo 1 - aminocyclopropane - 1 - carboxylic acid ( acc ) oxidase gene were used to prime the amplification of fragment of 128bp by ploymerase chain reaction ( pcr ) in samples of genomic dna from fruit of cucumis melo l . cv hetao flesh , which was cloned into plasmid vector pmd - 18 - t . the clon of antisense orientation were selected , and it was inserted downstream of camv35s promoter and enhancer “ “ of tmv into the plant expression vector pbinyxw , antisence expression vector pbinya was constructed . at the base that pollination and fertilization of cucumis melo l . cv hetao was studied , using pollen tube pathway transformate cucumis melo l . cv hetao , 76 fruit had been obtained , moreover , hardness and content of sugar were analysed 本實驗以河套蜜瓜果肉基因組dna為模板，用甜瓜acc氧化酶基因特異寡核苷酸鏈為引物進行pcr擴增，得到128bp的擴增產物。將得到的擴增產物克隆到質粒載體pmd - 18 - t上，篩選反向克隆，然后將其反向構建到植物表達載體pbinyxw的camv35s啟動子和tmv增強子“ ”的下游，構建成反義表達載體pbinya 。并在對河套蜜瓜授粉受精生物學研究的基礎上，通過花粉管通道法轉化河套蜜瓜，共獲76顆瓜，并進行了硬度和含糖量的分析。 |