求翻译：镁及镁合金密度小，比强度、比刚度高，具有良好的尺寸稳定性、电磁屏蔽性、抗震性、导电导热性、切削性,储量丰富等优点是什么意思？

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Magnesium and magnesium alloy low density than strength, stiffness, than good dimensional stability, electromagnetic shielding and shock resistant, conductive thermal conductivity, cutting, offering a wide choice of other benefits

The magnesium and the magnesium alloy density are small, the specific tenacity, is higher than the rigidity, has the good size stability, the electromagnetism shielding property, the anti-knocking property, the electric conduction thermal conductivity, the machinability, the reserves rich and so on

Magnesium and magnesium alloy low density, high specific strength and stiffness, with excellent dimensional stability, electromagnetic shielding, thermal shock resistance, electrical conductivity, and cutting, abundant advantages

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