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ȻʯӢɰ@ôãô҂һ£(du)ʯӢɰVϵļg(sh)ЩҪ
1ʯӢɰVϵʺĥp֮Ͳ(yng)1.5%ٷʰ|(zh)Ӌ(j)ͬ
2ʯӢɰVϵܶȲ(yng)С2.55g/cm3ʹЌ(du)ܶҪ⡣
3ʯӢɰVϑ(yng)ҊĸЙC(j)s|(zh)VϵˮҺж|(zh)(yng)1%ܶС2g/cm3p|(zh)ĺ(yng)0.2%
4ʯӢɰVϵƟp(yng)0.7%
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