1、1.1 长度单位的换算1km= m1m= dm1dm= cm1cm= mm1mm= um1um= nm1km= dm1m= cm1dm= mm1cm= um1mm= nm1km= cm1m= mm1dm= um1km= mm1m= um1dm= nm1km= um1m= nm1km= nm1cm= um1m= km1dm= m1cm= dm1mm= cm1um= mm1nm= um1dm= km1cm= m1mm= dm1um= cm1nm= mm1cm= km1mm= m1um= dm1mm= km1um= m1nm= dm1um= km1nm= m1nm= km1um= cm2km= m4
2、0m= dm6dm= cm8cm= mm7mm= um2um= nm 108km= m 104m= dm 104dm= cm 2x1018cm= mm2x103 mm= um 106 m= nm3x10-3km= m2.8x10-2m= dm2x10-5dm= cm10-3cm= mm3.8x10-3mm= um2x10-2um= nm 3x10-7m= km 7x10-5m= um10-4cm= mm1.435m= km8844.3m= km6.4x106m= nm7x108m= km7.6x1020m= um3x108m= km1.5x10-3km= cm1.1km= m0.75km= m1.93m= cm60m= dm0.8m= cm33cm= mm48mm= nm120nm= um250um= cm700mm= dm1000m= km3070m= cm34m= nm5200km= m1.08x10-6km= nm6.8x1016nm= m
