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lanya1988
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Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
caocao4735(½ð±Ò+1):ллJ°ßÖñ 2010-10-06 21:22:41
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caocao4735(½ð±Ò+1):ллJ°ßÖñ 2010-10-06 21:22:41
| Magnesium is a highly flammable metal, but while it is easy to ignite when powdered or shaved into thin strips, it is difficult to ignite in mass or bulk. Generally, it is about 38¡æ-40¡æ for magnesium powders. |
3Â¥2010-10-06 20:55:33













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