| 2(1H)-quinolone; carbostyril |
21-hydroxylase |
2(1H)-喹啉酮 |
21 type repeater |
21-三体蒙古痴呆先天性疾病 |
| 21-三体蒙古痴呆先天性疾病 |
21世纪议程 |
21世纪军官人事管理系统 |
21世纪军官人事管理系统 |
21世纪议程 |
| 21公分辐射 |
21公分辐射 |
21 区 |
21 区 |
2:1型黏土矿物 |
| 2:1型黏土矿物 |
2/1斜纹 |
2/1斜纹棉布(英国产) |
2/1斜纹纺毛衣布料 |
2/1斜纹 |
| 2/1斜纹棉布(英国产) |
2/1斜纹纺毛衣布料 |
2/1棉织物(被褥套布用) |
2/1棉织物(被褥套布用) |
2-(1-环己烯基)环己酮 |
| 2-(1-环己烯基)环己酮 |
2-(1-甲-2-吡咯)吡啶 |
21程序表 |
2/1粗斜纹布 |
2/1粗斜纹布 |
| 2/1细斜纹布 |
2/1经面斜纹织物 |
2/1细斜纹布 |
2/1经面斜纹织物 |
21-羟化酶 |
| 21-羟化酶 |
2,1-苯并哌喃酮 |
2-(1-萘甲)咪唑啉盐酸盐 |
2-(1-萘甲)咪唑啉盐酸盐 |
2-205 rule |
| 2-205 规则 |
2-205 规则 |
2,2,2-tribromo-1,1-ethanediol; bromal hydrate |
2,2,2-trichloro-1,1-ethanediol; chloral hydrate |
2,2,2-trichloro-1-ethoxy-ethanol; chloral alcoholate |
| 2,2,2-trichloroethanol |
2,2,2-trichloroethyl chloroformate |
2,2,2-三氯-1,1-乙二醇 |
2,2,2-三氯-1-乙氧基乙醇 |
2,2,2-三氯乙醇 |
| 2,2,2-三溴-1,1-乙二醇 |
2,2,3,3-四甲基丁烷 |
2,2,3-三甲基丁烷 |
2240号小行星 |
2240号小行星 |
| 2,2',4,4'-tetrabromo-diphenylamine |
2,2,4,4-tetramethyl-1,3-cyclobutanedione |
2,2',4,4'--tetranitro-carbanilide |
2,2',4,4'-四溴二苯胺 |
2,2,4,4-四甲-1,3-环丁二酮 |
| 2,2,4,4-四甲-1,3-环丁二酮 |
2,2',4,4'-四硝羰胺苯 |
2-(2,4-dinitrophenylthio)-benzothiazole |
2,2,4-trimethyl-2-pentanol |
2,2,4-trimethylpentane; isooctane |
| 2,2,4-三甲-2-戊醇 |
2,2,4-三甲基戊烷 |
2-(2,4-二氯苯氧)乙硫酸钠 |
2-(2,4-二氯苯氧)乙硫酸钠 |
2-(2,4-二硝苯硫)苯并喹唑 |
| 2,2,6,6-tetramethyl-4-piperidone |
2,2,6,6-四甲-4-哌啶酮 |
2,2,6,6-四甲哌啶酮 |
2,2',6-三羟二苯基酮 |
2,2',6-三羟二苯基酮 |
| 2 (2-anilinovinyl) -3,4-dimethyl-oxazolinium iodide |
2,2'-azobis(4-methoxy-2,4-dimethylvaleronitrile) |
2,2'-azobisisobutyronitrile; 2,2'-azobis(2-methyl-propionitrile) |
2,2'-benzidinedisulfonic acid |
2,2'-bicamphane-2,2'-diol; camphor pinacol |
| 2,2'-bipyridyl; 2,2'-bipyridine |
2,2-bis(4-hydroxyphenyl)-hexafluoropropane |
2,2-bis(4-hydroxyphenyl)-popane; bisphenol A |
2,2-bis(ethylsulfonyl)-propane |
2,2-bis(hydroxymethyl)-1,3-propanediol; pentaerythritol |
| 2,2-bis(p-hydroxy-phenyl)phthalide; phenolphthalein |
2,2-bis(tert-butylperoxy)-butane |
2-(2'-chloroethoxy)ethanol |
2,2'-diaminoazobenzene |
2,2'-diaminobenzophenone |
| 2,2'-diaminodiethylamine; diethylenetriamine |
2,2'-diaminostilbene |
2,2'-dibromoazobenzene |
2,2-dichloro-1-methyl-cyclopropane |
2,2-dichlorobutane |
| 2,2-dichloroethanol |
2,2-difluorotetrachloro-ethane |
2,2'-dihydroxy-4-methoxybenzophenone |
2,2'-dihydroxybenzo-phenone |
2,2'-dihydroxydiethyl ether; diethylene glycol |
| 2,2'-di(hydroxyethyl)-amine; diethanolamine |
2,2-dimethyl-1,3-propanediol |
2,2'-dimethylazobenzene |
2,2'-dimethylbenzidine; m-tolidine |
2,2-dimethylbutane |
| 2,2-dimethylhexane |
2,2'-dimethylhydrazo-benzene |
2,2-dimethylparaconic acid; terebic acid |
2,2-dimethylpentane |
2,2-dimethylpropane |
| 2,2-dimethylpropanol |
2,2'-dimethylthiocarbanilide |
2,2'-dinaphthylamine |
2,2'-diphenaminic acid |
2,2'-diphenic acid |
| 2,2'-diphenic acid diethyl ester |
2,2'-diphenic anhydride |
2,2'-diphenimide |
2,2'-diphenol |
2,2'-diphenoyl chloride |
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