bakelite n.酚醛塑料,胶木酚醛树脂;胶...bakelite B 酚醛树脂B;半熔(半溶)酚醛树...bakelite C 酚醛树脂C;不熔(不溶)酚醛树...bakelite A 酚醛树脂A;可熔(可溶)酚醛树...bakelite surface 电木面...
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