If you are not using a modeling tool, your realization may be a desk drawer containing hand-drawn models or photographs of whiteboard models.

如果你不用建模工具，你的实现就得在桌子上画出图来，不管是纸面手工作图还是在白板上画好模型拍下来。

youdao

If you are not using a modeling tool, your realization may be a desk drawer containing hand-drawn models or photographs of whiteboard models.

如果你不用建模工具，你的实现就得在桌子上画出图来，不管是纸面手工作图还是在白板上画好模型拍下来。

youdao