硼
- 与 硼 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Finally, organoboron surfactants used in plastics for anti static application was discussed emphatically.
最后重点探讨了有机硼表面活性剂在塑料抗静电领域的应用性能。
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Palladium-catalyzed Suzuki-Miyaura cross-coupling reaction of organoboron with organic electrophiles has been recognized as one of the most important carbon-carbon bond building reactions.
钯催化的有机硼试剂与有机亲电试剂的Suzuki-Miyaura 交叉偶联反应是构建碳一碳键的最重要的反应之一。
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Starting with boric acid and glycerin, several organoboron based surfactants using diglycerin borate as intermediate and modified with epoxyethane were synthesized.
以硼酸和甘油为起始原料,合成了几种以硼酸双甘油酯为中间体及环氧乙烷修饰的有机硼表面活性剂。
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The process comprises polymerizing olefins in the presence of a supported indenoindolyl catalyst system and an organoboron or organoaluminum-treated solid.
该方法包括在茚并吲哚基载体催化剂体系和无机硼或无机铝处理的固体存在下聚合烯烃。
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Performing the process in the presence of the organoboron or organoaluminum-treated solid surprisingly leads to an increased activity compared to polymerization processes performed without the treated solid.
与不使用处理过的固体进行的聚合方法相比,在有机硼或有机铝处理的固体存在下进行所述方法令人惊奇地使活性增加。
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Cross-Coupling Reaction of Organoboron with Arylhalide by Pd° Catalyzed;;Studies on Syntheses,Properties,Structures and Bioactivities of Hydrazones and Its Complexes
中文题名具有生物活性的酰腙及其配合物的研究;钯催化下硼试剂与卤代芳烃的偶联反应
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By introducing organo-zirconium complex into organoboron compound,a crosslinking agent,BA1-21,is developed under strictly controlled reaction condition.
在室内对影响超高温压裂液性能的主要添加剂———稠化剂和交联剂进行了改性,考察了影响超高温改性瓜胶产品性能的主要因素,确定出了其合理的工艺条件,并通过严格控制反应条件,向有机硼中引入有机锆络合物,获得了交联剂BA1-21。
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Generally, these compounds are derived from accessible α–oxoketen dithioacetals and the common methods of preparation involve regioselective sodium borohydride 1,2-reduce of α–oxoketen dithioacetals, 1,2-nucleophilic addition of organomatals such as organomagnesium, organolithium, Reformatsky regent to α–oxoketen dithioacetals, Baylis-Hillman reaction between polarized ketene dithioacetals and aldehydes.
主要方法包括:使用硼氢化钠1,2-选择性还原α-羰基二硫缩烯酮;利用有机金属化合物(如有机镁试剂,有机锂试剂,Reformatsky试剂等)对α-羰基二硫缩烯酮进行1,2-亲核加成;通过α-羰基二硫缩烯酮与芳醛进行Baylis-Hillman反应等获得。
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The coarse grain in cast strip is produced on the condition that cool speed is not fast enough to overcool aluminum melt in whole cast area, and only provide proper temprature gradiant to keep cellular grain growing up.
铸轧区内铝液与铸轧辊接触瞬间,当铸轧辊冷却强度不足以使整个断面铝液同时产生较大的过冷,而仅能保持胞状晶生长所需的液体温度梯度时,铸轧板就会出现粗大晶粒;根据传热学原理,分析了具体生产条件,提出增大铸轧辊冷却强度、降低前箱温度以及添加铝钛硼丝等防止铸轧板产生粗大晶粒的措施。
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Spectroscopic properties of Er3+ doped transparent oxyfluoride borosilicate glass ceramics containing Ba2LaF7 nanocrystals are systematically investigated.
制备了含有Ba2LaF7纳米晶的Er3+掺杂氧氟硼硅盐玻璃陶瓷,并对其光谱特性进行了研究。
- 推荐网络例句
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In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.
。但是,在否定句或疑问句里,这种带有"do"的方法表达的效果却没有什么强调的意思。
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Go down on one's knees;kneel down
屈膝跪下。。。下跪祈祷
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Nusa lembongan : Bali's sister island, coral and sand beaches, crystal clear water, surfing.
Nusa Dua :豪华度假村,冲浪和潜水,沙滩,水晶般晶莹剔透的水,网络冲浪。