How was Anatomy of the Dumb filmed in Black Sun 73 1?

It's not a real shot, but a combination of visual error and model.

Black Sun 73 1 is the first film in a series of "Black Sun" films directed by China mainland and Hong Kong, starring Tian and Tian, and was released in Hong Kong, China from 65438 to 0988. The film systematically exposed the evil of the Japanese invaders in launching germ warfare, and a large number of Japanese germ warfare crimes were exposed, and the claims against the Japanese people also started a difficult course from scratch.

Introduction:

A woman exposed her forearms and hands to cold snow under the gaze of Japanese soldiers. Japanese soldiers kept watering and knocked off the frozen ice on her hands and arms.

After a long time, the woman was pulled indoors and put her frozen hands in hot water. Then, in front of a dozen Japanese baby soldiers, a Japanese officer put his hand on the woman's arm and tore it down hard. The skin and flesh on the woman's arm all fell off, revealing pale hand bones.