並前往https://books.google.com.tw/books?id=wKXXVrYA3TEC&pg=PA109&lpg=PA109&dq=PCS+PTT&source=bl&ots=2sxbpdRVOK&sig=ACfU3U2wNebiBHsQDDG4HO2BHy5UeZyKOw&hl=zh-TW&sa=X&ved=2ahUKEwj_16a6hfmAAxX3bPUHHTuUB5IQ6AF6BQidARAD