1.5mm=___pm,15min=___h,1h___s.
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1.5mm=___pm,15min=___h,1h___s.1.5mm=___pm,15min=___h,1h___s.1.5mm=___pm,15min=___h,1h___s.1.5mm=1.5×
1.5mm=___pm,15min=___h,1h___s.
1.5mm=___pm,15min=___h,1h___s.
1.5mm=___pm,15min=___h,1h___s.
1.5mm=1.5×10^9 pm【1mm=1 000 000 000 pm】
15min=0.025 h,1h=3600 s 【1h=60min=3600s;1min=60s】
1.5mm=_1500000__pm,15min=_0.25__h,1h=_3600__s.
1.5mm=___pm,15min=___h,1h___s.
1.5min/mm
1mm/min等于多少km/h?还有1mm/min=___m/s?
mm/min如何换算成cm/h? 例如12.5mm/min=?cm/h
1cm/min=多少mm/sec1mm/sec=多少cm/min
1mm/sec=多少cm/min1cm/min=多少mm/sec
wu li ti(1)1.5km=( )m=( )cm=( )mm(2)43000nm= ( )um=( )mm=( )cm(3)468m=( )nm(4)15km=( )m(5)2.5h=( )min=( _)s(6)120s=( )min=( )hbi you zhong xie
两带轮传动,n1=1450r/min ,D1=130mm ,D2=260mm ,求n 2
换算 0.07mm=?um 100nm=?m 45min=?h=?s
5.4乘103µs=___min;360ms=__ns
数控车床尺寸,mm,min,r/min,lt6,um,mm/min,
15min=( )h
15min=多少h
3s=多少ms 4h=多少min?15dm=多少m?78mm=多少m?120nm=多少m?
带传动功率P=5kw,已知n1=400r/min,d1=450mm,d2=650mm,中心距a=1.5m,fv=0.2,求带速V,包角α和有效拉
在车床上车削直径为40mm的轴,选用主轴转速n=600r/min,如果用相同的切削速度车削直径为15mm的轴,这时主轴转速应为多少?
①30S=( )=( )min ②0.2h=( )=( )S ③45min=( )=( )h ④500m=( )=( )mm请帮忙``急用`!
15米长无缝钢管求厂家报价无缝钢管 外径 273+ 2MM,壁厚= 12.7-0.50MM,长度=1530MM+5MM,技术要求 ASTM A-106-63 T GRADE C,热轧成品管 .Mn.不少于 0.7%,最大拉伸强度:35 TSI MIN.OR BS-3602,1962 (HFS 490 Nb) SEMI KILLED NOR