| 1. | Management and further services belong to the offer portfolio of active group 是一家高级别的大型贸易商,提供多方面的、高质量的经营、调节、耕种。 |
| 2. | The undergraduates who are in active group are more different and better than those in passive group in mental health 民族认同积极组的回族大学生与民族认同消极组的回族大学生的心理健康状况水平有显著性差异,积极组的心理健康水平好于消极组。 |
| 3. | Four kinds of 7 - ( n , n - diethylamino ) coumarins with highly active groups were synthesized under microwave irradiation and their structures were characterized by ir , nmr 摘要采用微波辐射技术合成了4种带有较强反应基团的7 -二乙胺基类香豆素,并通过红外光谱、核磁共振等手段对产物的结构进行了表征。 |
| 4. | Chitosan - nylon composite membrane with two active group ( - nh2 and - oh ) had a hydrophilic surface and good blood compatibility , so it can be widely used in affinity separation 其中尼龙壳聚糖复合膜具有胺基和羟基两种活性基团、良好的亲水性能、较佳的血液和生物相容性,可广泛应用于亲和微滤。 |
| 5. | After re - examining the data in 1998 they discovered the active group , which did a physical activity that caused sweating and strained breathing , were less likely to suffer from alzheimer ' s 1998年研究人员对这些资料数据进行了再次检查后发现,积极进行身体锻炼被调查者,其患老年痴呆症的危险性较小。 |
| 6. | Their mental health is influenced with their ethnical identity , especially in mental symptom . the undergraduates who are in active group is much different and better than those in passive group in mental health 民族认同积极组的回族大学生与民族认同消极组的回族大学生的心理健康状况水平有显著性差异,积极组的心理健康水平好于消极组。 |
| 7. | Silane coupling agent ( kh - 560 ) with active groups was used for the treatment on silica particles in this article . the surface of silica which was treated in the way of chemical bonds was changed from hydrophilication to amhydrophilication 本文采用具有活性基团的硅烷偶联剂( kh - 560 )对二氧化硅粒子进行了表面改性,使二氧化硅颗粒表面由亲水性变为亲油性。 |
| 8. | The synthesis technology of various liquid rubbers with different active group terminated , such as hydroxyl - terminated , carboxyl - terminated , isocyanate - terminated , ami - no - terminated , mercaptan - terminated and various main chains like polybutadiene , polyurethane , polystyrene were reviewed with 23 references 摘要综述了端羟基、端羧基、端异氰酸酯基、端氨基、端巯基等活性端基,以及聚丁二烯、聚氨酯、聚苯乙烯等不同主链结构的液体橡胶的合成技术。 |
| 9. | Through the analyzing the macro - structure to micro - structure , the author considers that retarding mechanism of citric acid is that citric acid and ca in the gypsum form the complexant ion , and hinder the crystallization center of dihydrate crystal bigger ; that of sodium tripolyphosphate is that it combined with ca , hinders the dissolve of hemihydrate . formation and growth of crystallization center ; that of bone glue is the glue - protection and chemical absorption action of active group , which also retards the formation and growth of crystallization center 通过宏观到微观的分析,笔者认为,柠檬酸的缓凝作用的原因主要在于柠檬酸与钙形成络合离子,影响了二水石膏晶体的晶核长大过程;多聚磷酸钠与钙形成某种复盐,对于石膏晶体的溶解、成核和长大过程均有强烈的阻碍影响;骨胶则在于胶体对半水石膏的包裹和活性基团的化学吸附,使二水石膏晶体的成核和长大困难。 |
| 10. | The key stage of fabricating gene chip is pretreatment of glass surface including the processes of nh3h2o treatment , aminosilane treatment and aldehyde treatment . the pretreatment can grow active group that can bind probe effectively on the surface of glass slide . as a result , the actively treated glass slide can suit for fabricating in - situ synthesis high density gene chips 基因芯片制备技术的关键步骤是玻片表面预处理,即对玻片表面进行羟基化、氨基化和醛基化处理,使表面生长的活性基团能有效固定寡核苷酸探针,以满足原位合成高密度基因芯片对玻片的要求。 |