原有的单位要换算成的单位应乘以pounds磅kilograms千克(公斤)0.453 592pounds磅tons吨4.53592×10-4long hundredweights长担kilograms千克50.802 345short hundredweights短担kilograms千克45.359 237long tons长吨kilograms千克1 016.046 9long tons长吨tons吨1.016 046 9short tons短......(本文共 469 字) [阅读本文] >>