| 1. | Method for the determination of terbufos residues in cereals for export 出口粮谷中特丁磷残留量检验方法 |
| 2. | Test method for analysis of methyl tert - butyl ether mtbe by gas chromatography 用气相色谱法分析甲基特丁基乙醚的试验方法 |
| 3. | Standard test method for analysis of methyl tert - butyl ether by gas chromatography 用色谱法分析甲基特丁基乙醚的标准试验方法 |
| 4. | Di - tert - butyl phenol 二特丁基苯酚 |
| 5. | 2 . can tert - butylhydroquinone tbhq be used as antioxidants in edible oils and fats 2 .特丁基对苯二酚可否使用于食油及脂肪内作为抗氧化剂 |
| 6. | Massey and tell fred armatrading that we finally have pictures ofhis wife with the oral surgeon 跟佛瑞德阿姆斯特丁说我们有了他老婆跟那个牙医一起的照片了 |
| 7. | [ massey ] and tell fred armatrading that we finally have pictures ofhis wife with the oral surgeon 跟佛瑞德阿姆斯特丁说我们有了他老婆跟那个牙医一起的照片了 |
| 8. | Tbc butadiene for industrial use - determination of tert - butyl - catechol 4 - 1 , 1 - dimethylethyl - 1 , 2 - benzenediol - spectrometric method 工业用丁二烯中特丁基邻苯二酚 |
| 9. | In order to research systematically the kinetics of the redox reaction between tbh and np ( vi ) , the main contents of the work in this paper are as follows . ( 1 ) tbh is synthesized by direct alkylization in chsoh media . the structure and composition of the product are characterized by elemental analysis , uv - vis spectrum , ir spectrum , ms spectrum and nmr spectrum respectively 为深入系统的研究特丁基肼还原np ( )的动力学,为后处理工艺流程提供实验和理论依据,本文研究了以下内容: ( 1 )以甲醇为溶剂,用直接烷基化的方法合成了特丁基肼,并通过元素分析、紫外光谱、红外光谱、质谱、核磁共振谱等手段对产品进行表征。 |
| 10. | The substitution of pervaporation for traditional separation in organic mixtures is of energy - saving and environment - protecting significance . in this paper , pervaporation of two kinds of organic mixtures is investigated : one is using ca membrane and ca - eva ( ethylene - co - ethylene acetate ) composite membrane for methanol removal from mtbe ( methyl t - butyl ether ) , focused on the influence of casting solvent mixtures ; the other is utilizing proper membrane stuff and additive to separate p - xylene from m - xylene 本文对两类有机有机混合体系进行了渗透汽化膜过程的研究,其一为醋酸纤维素( ca )膜及ca -乙烯醋酸乙烯共聚物( eva )复合膜用于甲基特丁基醚( mtbe )中少量甲醇( 5 meoh )的脱除,探讨铸膜混合溶剂及后处理技术对膜分离性能的影响。其二为运用适当的膜材料及添加剂去除间二甲苯( mx )中的少量对二甲苯( 10 px ) 。 |