• 2022-05-27
    圆柱形零件的半径[tex=0.857x1.286]j8srFroP77b1WAWYw2nwIQ==[/tex]为[tex=2.571x1.286]zjaz7RQyHcUdbMLay0DmIQ==[/tex],长[tex=0.571x1.286]x194220Kn6/AuOngnKO24Q==[/tex]为[tex=1.786x1.286]m5f4Gl8/ZuFcawPNQktL8g==[/tex],在其侧面镀一层厚[tex=3.071x1.286]vn+QVLdvtxB5V+uGJq3bAQ==[/tex]的铜,问十万个零件共需要铜多少(铜的比重为[tex=4.5x1.286]yDUgQIFeTUAaDbwKbmezrQ==[/tex])?
  • 举一反三