ikustiH wrote:
小時候有學過!!2者...(恕刪)
同理可證~
FANS CLUB只要有兩個人就可以成立了~~
搖滾吧!男孩! wrote:
兄弟...這英文字我...(恕刪)
wiki上說的:
Structure
Polycarbonates received their name because they are polymers containing carbonate groups (-O-(C=O)-O-). Most polycarbonates of commercial interest are derived from rigid monomers. A balance of useful features including temperature resistance, impact resistance and optical properties position polycarbonates between commodity plastics and engineering plastics.
是介於一般的plastic 和 engineering plastic之間..請看完整篇要批評再來說吧..
英文回去重練後再來!
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