1m2
例句释义:1.Currently, objects with a radar cross-section of 1m2 are detectable at ranges of 1, 000km.目前，有着1平方米雷达有效区的物体能在1000千米范围内被探测到。
2.Indoors at the same time in the upper and lower extremity strength training home fitness equipment. It covers an area of just 1m2.可以在室内同时进行上下肢力量练习的家用健身器械。它的占地面积只需1m2。