The pronunciation of fiber is: xiān wéi

Explanation: A natural or synthetic filament-like substance. Cotton, the bast part of hemp plants, animal hair and asbestos in minerals are all natural fibers. Synthetic fibers are made of polymer compounds.

In animals and plants, fiber plays an important role in maintaining tissues. Fiber has a wide range of uses and can be woven into thin threads, thread ends and hemp ropes. It can also be woven into fiber layers when making paper or weaving felt. It is also commonly used to make other materials, and is combined with other materials to form composite materials. Fiber filling can effectively improve the strength and stiffness of plastics.

Fibers are divided into natural fibers and chemical fibers. Natural fibers exist in nature and can be obtained directly. According to their sources, they are divided into three categories: plant fibers, animal fibers and mineral fibers.

Chemical fibers are fibers made through chemical treatment. Can be divided into man-made fibers (regenerated fibers), synthetic fibers and inorganic fibers.