並前往https://books.google.com.tw/books?id=6KvQDwAAQBAJ&pg=PT584&lpg=PT584&dq=Mantle+cavity&source=bl&ots=YSOCilOuh1&sig=ACfU3U1BZI1WrYcKBhebdR8CSUUi7CO06w&hl=zh-TW&sa=X&ved=2ahUKEwi06tyrzqT6AhXlUGwGHUGjDdcQ6AF6BQjJAhAD