单词	Lexan
释义	Lexan /ˈlɛksan / noun [mass noun] trademark A transparent plastic (polycarbonate) of high impact strength, used for cockpit canopies, bulletproof screens, etc.The polycarbonate trademarked as Lexan is used in ‘bulletproof’ glass and in astronaut's helmets.... There is no such thing as ‘hard’ polycarbonate, AKA Lexan. The basic materials palette consists of corrugated Galvalume, Lexan, plywood, Luan, and oriented strand board. Origin 1950s: an invented name.
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