“primary light source”簡單造句，primary light source造句子

Abandoning incandescent bulbs means abandoning fire as our primary light source for the first time in human history.

A photography technique that frequently catches my eye is the use of silhouette - placing a subject directly between a primary light source and the camera.

Even the lighting design has been influential to the project, where the primary light source for the roof of the bike rack is indirect and hidden.