沿圖示路徑等距陣列20個(gè)孔。請問該零件的重心的X坐標(biāo)是多少?()
A.3.896mm B.3.897mm C.3.898mm D.3.899mm
按圖所示修改零件。用5mm的間距進(jìn)行矩形陣列。請問該零件的體積是多少立方毫米?()
A.3.850E+03 B.3.851E+03 C.3.852E+03 D.3.853E+03
A.3.406E+03 B.3.407E+03 C.3.408E+03 D.3.409E+03