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- Cobalt salt was employed as catalyst precursors,copper plate as substrate and ethanol as carbon source. 采用乙醇催化燃烧法,以钴盐作为催化剂先体、薄铜片作为基底制备碳纳米管。
- The two cyclopentadienyl groups in metallocence compexes can be linked by one or two bridging groups to form ansa-metallocence catalyst precursors. 摘要茂金属化合物中两个茂环可以通过一个或两个桥基相连接，形成各种桥联茂金属催化剂前驱体。
- The catalyst precursor con-sists of ML(Malachite-Like)and FC(Feitknecht compound)phases. 它由分解类孔雀石（ML）相和FC型化合物组成的母体而制得。
- Compared to catalyst precursor, due to complexities of its composition and structure, study on activator is considerably limited. 相对于主催化剂而言,由于组成和结构的复杂性,关于助催化剂方面的研究非常有限。
- The researchers now report their success with the octene-to-nonanal system.The team first mixed octene with nonanal and the catalyst precursors in the reaction chamber. 当然，若解决了二氧化碳捕集和电解提取技术难题，剩下的就是各单元的联动和能量平衡问题。
- Carbon nanotubes were obtained by the floating catalyst method using polystyrene as carbon source and ferrocene as catalyst precursor. 摘要利用流动催化裂解法以聚苯乙烯为碳源，二茂铁为催化剂前躯体制备出了碳纳米管。
- Different carbon products were obtained by the pyrolysis of toluene using ferrocene as catalyst precursor and thiophene as promoter. 以甲苯为碳源，二茂铁为催化剂前躯体，噻吩为生长促进剂，在不同条件下通过甲苯催化热解反应得到不同的炭产物。
- Interwoven carbon nanofiber yarns were prepared from the catalytic pyrolysis of methane using ferrous sulfate and graphite as catalyst precursor and substrate respectively. 以甲烷为碳源,硫酸亚铁为催化剂前驱体,通过化学气相沉积在石墨基板上制得毛线状炭纤维。
- With the orthogonal experiment investigated synthesis condition of catalyst precursors,the optimal of volume ratio of isobutanol/ benzaldehyde , reacting temperature and reacting time were determined. 采用正交试验考察催化剂前驱体的合成条件，确定了制备前驱体的最佳反应条件，包括苯甲醇和异丁醇体积比、反应温度、反应时间。
- PREPARATION, STRUCTURE AND PROPERTIES OF HOMOGENEOUS Cu-Zn-AI MIXED OXIDE PARACRYSTALLINE CATALYST PRECURSORS 准晶态Cu-Zn-Al均匀氧化物催化剂母体的制备、结构与性能研究
- The precursor of the modern car was a horseless carriage with a petrol engine. 现代汽车的前身是不用马拉的，装有汽油发动机的车子。
- The offer of a new job provided just the catalyst she needed. 这份新工作正是她所需要转变的契机。
- the optimum preparing methods and conditions of magnetic catalyst precursor MgAl-CO3-LDH/MgFe2O4; 磁性前体MgAl-CO3-LDH/MgFe2O4的优化合成；
- Thefirst telephone was the precursor of modern communications networks. 最早出现的电话是现代通讯网的雏型。
- The precursor or stem cell of a plasma cell. 成浆细胞浆细胞的前体细胞或干细胞
- The last step is to regenerate the catalyst. 最后一步是将催化剂还原。
- A precursor cell of a melanocyte or melanophore. 成黑素细胞产生黑素细胞的母体细胞
- War is a catalyst to help them to choose. 战争是一副催化剂来帮助他们选择。
- Error is often the precursor of what is correct. 错误常常是正确的先导。
- Debate is the best catalyst of thought. 争论是思想最好的催化剂。
