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- 本文介紹車(chē)用發(fā)動(dòng)機可變進(jìn)氣管長(cháng)度電子控制原理,并舉出了在奧迪VS(2.8升)發(fā)動(dòng)機、歐寶Astra(1.8升)發(fā)動(dòng)機上的應用實(shí)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.
- 羅哌卡因(Ropivacaine，R)是一種新型長(cháng)效酰胺類(lèi)局部麻醉藥，由瑞典阿斯特拉疼痛控制中心(Astra Pain Control AB，Sweden)研制開(kāi)發(fā)。Ropivacaine is a long-acting amino amide class of local anesthetics, developed by Astra Pain Control AB, Sweden .
- 在熱重分析儀上以異丙苯裂化反應為模型反應 ,采用CCAP(恒碳Arrhenius關(guān)系圖 )技術(shù)探討了裂化催化劑ASTRA MB1的積炭失活機理 ,得到了反應速率常數和有效擴散系數隨積炭量的變化規律。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.
