並前往https://books.google.com.tw/books?id=Hbz4LYIrvuMC&pg=PA102&lpg=PA102&dq=gps&source=bl&ots=HGNQLqJANX&sig=ACfU3U3zcsHsDlf_vhcIffEz2MgZ5BX6yg&hl=zh-TW&sa=X&ved=2ahUKEwjOl8eI0uf8AhV7HLkGHap6DZ8Q6AF6BQiWAxAD