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- 本文介绍车用发动机可变进气管长度电子控制原理,并举出了在奥迪VS(2.8升)发动机、欧宝Astra(1.8升)发动机上的应用实例。The principle of electronically controlled variable intake manifold length of vehicle engine is introduced in this paper. The application of this system to Audi V8(2. 8L) engine and Opel Astra(1. 8L)engine are made.
- 罗哌卡因(Ropivacaine,R)是一种新型长效酰胺类局部麻醉药,由瑞典阿斯特拉疼痛控制中心(Astra Pain Control AB,Sweden)研制开发。Ropivacaine is a long-acting amino amide class of local anesthetics, developed by Astra Pain Control AB, Sweden .
- 在热重分析仪上以异丙苯裂化反应为模型反应 ,采用CCAP(恒碳Arrhenius关系图 )技术探讨了裂化催化剂ASTRA MB1的积炭失活机理 ,得到了反应速率常数和有效扩散系数随积炭量的变化规律。This work is to investigate the deactivation of cracking catalyst during coking by using CCAP(Constant coke Arrhenius plots) technique. Cumene cracking on ASTRA MB1 zeolite was chosen as a model reaction. The thermogravimetric analyzer(TGA) was used as a continuous flow reactor to monitor coke levels.