长度
人文科学

        原有的单位要换算成的单位应乘以inches英寸centimetres厘米2.54feet英尺metres米0.304 8yards码metres米0.914 4miles英里kilometres公里1.609 34centimetres厘米inches英寸0.393 7metres米feet英尺3.280 84metres米yards码1.093 61kilometres公里miles英里0.621 37......（本文共 197 字）     [阅读本文] >>