Some materials (such as plastic) are easily affected by the temperature variations.
有些材料（例如塑料）易受温度变化的影响。
Many things, such as toys, furniture, and computers, are made of plastic.
许多东西如玩具、家具和电脑都是塑料做的。
Various engineering plastic such as FRPP.
各种不同的工程塑胶如FRPP。
The sealed ring is made of elastic material, such as rubber, or rubber plastic, etc.
密封圈采用橡胶或橡塑一类弹性材料制造。
The sealed ring is made of elastic material, such as rubber, or rubber plastic, etc.
密封圈采用橡胶或橡塑一类弹性材料制造。
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