For example, if you're looking to photograph a rustic cabin in the woods, the most ideal texture would be of a raw, weather-beaten structure instead of one with vinyl siding.
Certainly I don’t advocate driving a Hummer full of plastic packaging, virgin forest paper, and aerosol cans out to your local land fill and killing a few baby seals on the way.
3
酚树脂和塑料是原始的热硬化性合成材料。
The phenol resins and plastics were the original synthetic thermosetting materials.