0.068m=___nm;16.4m=___μm;1.8h=___min;45min=___h;100nm=___mm=__m

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0.068m=___nm;16.4m=___μm;1.8h=___min;45min=___h;100nm=___mm=__m0.068m=___nm;16.4m=___μm;1.8h=___min;

0.068m=___nm;16.4m=___μm;1.8h=___min;45min=___h;100nm=___mm=__m
0.068m=___nm;16.4m=___μm;1.8h=___min;45min=___h;100nm=___mm=__m

0.068m=___nm;16.4m=___μm;1.8h=___min;45min=___h;100nm=___mm=__m
0.068m=_6.8x10^7__nm;
16.4m=_1.64x10^7__μm
1.8h=_108__min;
45min=_0.75__h;
100nm=_1x10^-4__mm=_1x10^-7_m

0.068m=6.8*10^7nm;
16.4m=1.64*10^7μm;
1.8h=108min;
45min=0.75h;
100nm=1*10^-4mm=1*10^-7m

0.068m=_0.068*10^9__nm;
16.4m=_16.4*10^6__μm;
1.8h=_60+48=108__min;
45min=_0.75__h;
100nm=_100*10-6__mm=_100*10*^-9_m

0.068m=_68000000__nm(nm纳米,长度单位,等于1乘10的负9次方米)
因为1mm=1000μm所以16.4m=_16400000__μm
因为1小时等于60分,45min=_0.75__h
100nm=__等于1乘10的负4次方_mm=_等于1乘10的负7次方_m

1m=___nm(纳米) 换算单位,4.6mm=___μm=___nm 0.068m=___nm;16.4m=___μm;1.8h=___min;45min=___h;100nm=___mm=__m 单位换算:7.5km=___m;5.85mm=___m;0.068m=___nm;16.4m=___微米;1.8h=___min;45min=___h. 物理长度的测量0.8um____mm=___nm 9x10^4 m=___km=___um 70mm=___m=___cm 1.3x10^5m=___mm=___nm 2.18.45cm所用刻度尺分度值___ 3.3.24cm分度值___50.6m分度值___3.25m分度值6.476的又是 一个甲型H1N1流感病毒分子的直径约为9乘10的-8次方m=___nm,做的原因, 纳米技术是指纳米尺度内的科学技术.它是现代科学技术的前沿.纳米是很小的长度单位,1nm=10负九次方m,一张纸的厚度大约只有0.1mm,应合___nm 487nm=___cm 0.25m=___um 12km=___mm 1.24km=___nm 2.56km=___dm 5dm=___nm 4.8mm=___km 5.39cm=___km 3800um=___km 2.4cm=___m 45min=___h 0.5h=___min90min=___h 1.3h=___min 0.6s=___us太大或者太小的数用科学计数法表示 另外能的话再附上 7m=5n,则m:n=_ (x-2)(x-m)=x²+nx-6,则m=_,n=_. (m-n):n=2:3则m:n=_:_ 计算:(m+3m+5m+……2013m)-(2m+4m+6m+…2012m)=_ 已知mn-n=15,m-mn=6,则m-n=_,-2mn+m+n=_ 8.4×10负六次方km=___mm=___m=___nm 当m=_时,m的平方+4m-3有最小值为 May is prettier than any of her sis ters.=May is _ _ _ _ sisters.He is taller than me.=Iam _ _ _ him.=I am _ _ _ _ him.你多高?_ _ are you?=_ your 我一米六高I am 1.6m _=I am 1.6m _ _楼高一千米The _ _ the _ is 1000 meters. 我求求你们了,我求求你们了.1.560km=___m=___mm=__nm 2.7.8dm=___cm=___mm=___um 3.6700m=___mm=___um=___nm 4.0.89km=___m=___cm=___um 5.0.75m=___cm=___um=__nm 6.0.003dm=___cm=__nm 7.780nm=___mm=___m=__km 8.900um=___cm=___m 9.85mm=___dm=___km 10 设实数m,n满足m^2n^2-2n+8m+17=0,则n=_,m=_