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這裡是永蔚的小小部落格，你會在這裡找到他的上課筆記和閒時隨筆！
This is Alex's little blog. You will find his lecture notes and nautical nonsense here!

若有相關指教，可以從下面的電子信箱與我聯絡：
If you have any problems or advices, please contact me by the e-mail below:
hiimlilwei@gmail.com