heliograph

[ˈhi:liəgrɑ:f]
  • 释义
  • 照相制版,太阳摄影机,日光仪;

  • 双语例句
  • 1、

    The heliograph must thus be carefully aligned in the first instance.

    回照器在开始时就要小心地对准.

    辞典例句