工程制图习题集第四版答案高等教育出版社.ppt

P6 3 3种情况种情况 P7 P8 (5)(6)(7)(8)P9 P13 P14 P15 P16 (2)(1)P18 P18 (4)(3)P19 (2)(1)P19 (4)(3)P21-(1)P21-(2)P21-(3)P21-(4)P34-(3)P34-(4)P35-(1)P35-(2)P36-(3)P36-(4)P40-4 P41-5 P41-6 P42-7 P43-1 P43-2 P44-(1)P44-(2)P45-(3)P45-(4)P46-(5)P46-(6)P47-(7)P47-(8)P48-(9)P48-(10)P49-(11)P49-(12)P50-(13)P50-(14)P51-(15)P51-(16)P52-(17)P52-(18)P57-(1)P58-(2)P59-1BABAP60-2P61-(1)P61-(2)P62-(3)P62-(4)P63-2P64-3P65-4P66-5P67-(1)P67-(2)P68-(3)P68-(4)P69-7P69-8P70-9P71-10P71-11P72-12P72-13P73-14P73-15P74-(1)P74-(2)P75-(3)P75-(4)P76-(5)P77-(1)P78-(2)P79-(3)P79-(4)注意问题：注意问题：注意问题：注意问题：