並前往https://books.google.com.tw/books?id=Jh0YDQAAQBAJ&pg=PA50&lpg=PA50&dq=6%E5%88%86pvc%E6%B0%B4%E7%AE%A1%E5%83%B9%E6%A0%BC&source=bl&ots=Q4seSTwaSC&sig=ACfU3U3zz8v6GqbamskrxgbC3kAov9LX1Q&hl=zh-TW&sa=X&ved=2ahUKEwjs2tS4_eb9AhXIRLgEHTmCAAAQ6AF6BQikARAD