From Wikipedia, the free encyclopedia
长度是一维空间个度量,是国际单位制个七种基础度量之一。
勒几何体中长度通常指最长个一维。通常勒量度二维空间中量度直线边长辰光,称呼长度数值较大个为长,不比其值大或者勒“侧边”个为宽,而表达方式通常为长乘宽。
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