For technical drawings larger than A0 format, ____ method should be used when microfilming them.

Answer: Frame shooting

Analysis:

Using a platform camera, you can shoot various types of originals: you can shoot both single pages and Albums; you can take photos of both good-quality and poor-quality papers; you can take photos of opaque and transparent substrates (such as base pictures, X-rays, etc.); you can take photos of small formats. , you can also shoot large format, and you can also shoot in frames for large format originals above A0.