烯
- 与 烯 相关的网络例句 [注:此内容来源于网络,仅供参考]
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They were eucalyptol, bicyclo[2.2.1]heptan-2-one,1,7,7-trimethyl-,(1R)-, borneol, 1-methyl-2-(1-methyl ethenyl)-(1R-cis)-cyclobutaneethanol, limonene, 1-hydroxymethyl-7,7-dimethy lbicyclo[2.2.1]heptan-2-one,-spathulenol, 3,7,11,15-Tetramethyl-2-hexadecen-1-ol, isocitronellol,-9-Octadecenoic acid, heneicosane, respectively.
阿给中共有11个阿给炭没有检测出的成分,包括桉油精、D-樟脑、冰片、(1R-cis)- 1-甲基-2-(1-甲基乙烯基)环丁基乙醇、二戊烯、1-羟甲基-7,7-二甲基-双环[2.2.1]庚-2-酮、-匙叶桉油烯醇、3,7,11,15-四甲基-2-十六碳烯-1-醇、异香茅醇、-9-十八碳烯酸和廿一烷。
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GC/MS analysis on the leaf oil indicated that the main components with a relative content of ≥3% were alloocimene (43.22%),α-pinene (13.63%),γ-terpinene (5.49%),-3, 7-dimethyl-, 2, 6-octadien-1-ol (3.58%),β-fenchyl alcohol (4.58%), and 2-amino-3, 5-dicyano-6-(4-methoxyphenoxy)-pyridine (3.67%).
用GC/MS联用方法,对巨尾桉挥发油进行鉴定,相对百分含量在3%以上的化合物有:α-蒎烯(13.63%)、别罗勒烯(43.22%)、γ-萜品烯(5.49%)、3,7-二甲基-2,6-辛二烯醇(3.58%)、β-小茴香醇(4.58%)和2-氨基-3,5-二氰基-6-(4-甲氧基苯氧基)-吡啶(3.67%)。
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The progress of catalysts, which include composite-oxides catalysts and heteropoly compounds catalysts, for selective oxidation of isobutylene to methacrolein were summarized, the mechanism of this reaction on Mo-Bi catalysts was discussed.
本文综述了异丁烯选择氧化生成甲基丙烯醛催化剂,其中包括复合氧化物催化剂和杂多化合物催化剂等的研究现状,讨论了在Mo-Bi催化剂上异丁烯选择氧化生成甲基丙烯醛的反应机理。
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Diallyl trisulfide was synthesized with a yield of 76.4% based on sodium thiosulfate, allyl bromide and sodium sulfide. And diallyl tetrasulfide was synthesized by the reaction of sulfur monochloride with ally1 mercaptan with a yield of 81.0%.
以硫代硫酸钠、烯丙基澳和硫化钠为原料,合成了二烯丙基三硫,产率为76.4%;以一氯化硫和烯丙硫醇为原料合成了二烯丙基四硫,产率为81.0%。
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Exact butene, hexene and octene copolymers are a family of ethylene alpha olefin plastomers that bridge the gap between elastomers and plastics
烯烃塑性体产品系列之一,可满足介于弹性体和塑料之间的产品需求aExact丁烯、己烯和辛烯共聚物,属于乙烯
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Exact butene, hexene and octene copolymers are a family of ethylene alpha olefin plastomers that bridge the gap between elastomers and plastic s
烯烃塑性体产品系列之一,可满足介于弹性体和塑料之间的产品需求aExact丁烯、己烯和辛烯共聚物,属于乙烯
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ABSTRACT Immobilized penicillin acylase (from E.coli) was used to catalyze 7 phenylacetamido 3 E propenyl cephalosporanic acid hydrolyzation into 7 amino 3 E propenyl cephalosporanic acid. Then, trans APRA was acylated with hydroxyethyl ester of 4 hydroxy D phenylglycine to obtain trans cefprozil.
以7 苯乙酰氨基 3 E 丙烯基 3 头孢菌素 4 羧酸为原料,在青霉素酰化酶作用下,首先酶法水解得到3 E 丙烯基 3 头孢菌素 4 羧酸,过滤固相酶,滤液调pH分离得到反式APRA固体;在青霉素酰化酶作用下,反式APRA再与对羟基苯甘氨酸乙二醇酯缩合,得到反式头孢丙烯;酶法合成所得的产品与进口反式头孢丙烯对照品一致。
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They are 4-(2- hydroxy-3-butynlenoxy) benzoic acid (1, WA), 5-chloro-7, 8-dihydroxy-7-methyl- 6-oxo-3- [ -3, 4-dihydroxy-3, 5-dimethyl-l-heptylene] -1H-8, 8a-dihydrobenzo [2, 3-c] pyran (2, WB),-2-(2-methyl-2-dibutene diamido)-2-butenoic acid (3, B5262), 3, 4-dihydro-9, 10-dihydroxy-7-methoxy-3-methyl-1H-naphtho [2, 3- c] pyran-1-one (4, A73 semi-Vioxanthin), 8, 8'-bis (6, 9-dioxo-3,4-dihydro-10- hydroxy-7-methoxy-3-methyl-1H-naphtho [2, 3-c] pyran-1-one)(5, A122 Xanthomegnin), 2, 5-dioxo-3a-hydroxymethyl-3, 3a, 6, 6a-tetrahydro-furo [2, 3-b] furan (6, 1003-2), 7-acety1-5-chloro-6, 8-dioxo-7-methyl-3- [ -3, 5-dimethyl-1, 3- diheptylene] -4aH-benzo [2, 3-c] pyran (7, M2-2 sclerotiorin), respectively.
它们分别被命名为4-(2-羟基-3-丁炔氧基)苯甲酸(1,WA)、5-氯-7,8-二羟基-7-甲基-6-氧代-3-[-3,4-二羟基-3,5-二甲基-1-庚烯基]-1H-8,8a-二氢苯并[2,3-c]吡喃(2,WB)、-2-(2-甲基-2-丁烯二酰亚胺基)-2-丁烯酸(3,B5262)、3,4-氢-9,10-二羟基-7-甲氧基-3-甲基-1H-萘并[2,3-c]吡喃-1-酮(semi-Vioxanthin,4,A73)、8,8'-双(6,9-二氧代-3,4-二氢-10-羟基-7-甲氧基-3-甲基-1H-萘并[2,3-c]吡喃-1-酮)(Xanthomegnin,5,A122)、2,5-二氧代-3a-羟甲基-3,3a,6,6a-四氢-呋喃并[2,3-b]呋喃(6,1003-2),7-乙酰基-5-氯-6,8-二氧代-7-甲基-3-[-3,5-二甲基-1,3-庚二烯基]-4aH-苯并2,3-c]吡喃(Sclerotiorin,7,M2-2)。
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A new method for synthesizing rosin allyl alcohol ester was studied. p-Toluenesulfonic acid allyl alcohol ester was first synthesized by O-acylation of allyl alcohol with p-toluene sulfonyl chloride, using NaOH as catalyst. Then rosin allyl alcohol ester was synthesized from sodium resinate and p-toluenesulfonic acid allyl alcohol ester.
探索了一种两步合成松香烯丙醇酯的新方法,即先以烯丙醇和时甲苯磺酰氯为原料,以NaOH为催化剂,通过O-酰化反应合成中间体对甲笨磺酸烯丙醇酯,再与松香钠皂发生亲核取代反应合成目标产物松香烯丙醇酯。
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The results showed that there are 42 kinds of matters in health trunk, among which, the biggest relative mass fraction was santolina triene (16.04%), the second was α-fenchee (14.24%), and 43 kinds of matters were found from damaged trunk, the highest was β-pinene (18.07%), the second was α-pinene (12.39%).
结果表明:健康鱼鳞云杉干部挥发性物质共42种成分,其中相对质量分数最大的是神圣亚麻三烯(16.04%),其次是α-葑烯(14.24%);被害鱼鳞云杉干部挥发性物质共43种,其中相对质量分数最大的成分是β-蒎烯(18.07%),其次是α-蒎烯(12.39%)。
- 推荐网络例句
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For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether
年美国个人破产法的一个改动使得破产登记急速下降,而后引起了信用卡大规模的亏损。
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Eph. 4:23 And that you be renewed in the spirit of your mind
弗四23 而在你们心思的灵里得以更新
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Lao Qiu is the Chairman of China Qiuyang Translation Group and the head master of the Confucius School. He has committed himself to the research and promotion of the classics of China.
老秋先生为中国秋阳翻译集团的董事长和孔子商学院的院长,致力于国学的研究和推广。