aortic type of heart的用法和样例：
- But Prof Qureshi added that the type of person who owned a cat was usually already fairly stress-free and at low risk of heart disease.
- In smaller U.S. and Indian hospitals, he says, there aren't enough patients for one surgeon to focus exclusively on one type of heart procedure.
- He devises a new type of transistor.
- This type of bulb screws into the socket.
- This type of bicycle is up to date.