The appeal lies in their strength (they are up to 100 times stronger than steel) and their ability to conduct both heat and electricity.
碳纳米管在强度和导热、导电性能方面具有优异性能，它们的强度是钢材的100倍。
There are some metals which possess the power to conduct electricity and ability to be magnetized.
有些金属具有导电能力，并且能够被磁化。
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