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《木材加工问题》(前置练习)1、某林场生产一批柳树圆木,一共有150根。(1)这批圆木的体积有多少立方米?(得数保留三位小数)(2)已知每立方米柳木重450千克,这批柳木大约重多少吨?(3)这批柳木晾干后大约重多少吨?(湿木头的含
水率是15%)_______________________________________________________________________________________________________________
__________________________________________________________________________________________________________________2、把木材加工成最大的方木,(1)怎
样计算每根方木的体积?_________________________________________________________________________________________________________
___________________________________________________________________________(2)这批圆木能加工出多少立方米方木?_____________________________________________
_____________________________________________(3)几根这样的方木大约有1立方米?__________________________________________
________________________________________________练习1、把下面的一根圆木加工成一根最大的方木。加工成方木的体积是多少立方厘米?______________________________
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______________________________________________________________________________________________练习2、加工车间将一个棱长是20cm的正方体木材削成一个体积最大的圆柱,圆柱的体积是多少?_
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