並前往https://books.google.com.tw/books?id=QVtGAQAAMAAJ&pg=PA78&lpg=PA78&dq=titanium&source=bl&ots=S7s9Fqi3Pt&sig=ACfU3U3Pel9x7gmyCNHrUnjuzFeIJA4HTA&hl=zh-TW&sa=X&ved=2ahUKEwiEp9_yjcH9AhWZF1kFHYOhABUQ6AF6BQjuAhAD