Analog Circuit Design: Discrete & Integrated

http://www.amazon.com/Analog-Circuit-Design-Discrete-Integrated-ebook/dp/B00HZ3BCQQ/ref=sr_1_1?s=books&;ie=UTF8&qid=1429432621&sr=1-1&keywords=Analog+Circuit+Design+Discrete+and+Integrated

这个discrete是啥意思，分立器件?

直接link到rent的地方，难道是广告?

thank you