cad中218什么意思两个圆的直径有两个直径18的圆2,314183142223.14×(18÷3.14÷2)2×2=3.14x(9÷3.14)2x2=3.14x92÷3.142x2=81x2÷3.14=162÷3.14≈51.593.14×(18÷3.14÷2)2×2=3.14×(18÷2÷3.1
cad中218什么意思两个圆的直径有两个直径18的圆2,314183142223.14×(18÷3.14÷2)2×2=3.14x(9÷3.14)2x2=3.14x92÷3.142x2=81x2÷3.14=162÷3.14≈51.593.14×(18÷3.14÷2)2×2=3.14×(18÷2÷3.1
cad中218什么意思两个圆的直径有两个直径18的圆2,314183142223.14×(18÷3.14÷2)2×2=3.14x(9÷3.14)2x2=3.14x92÷3.142x2=81x2÷3.14=162÷3.14≈51.593.14×(18÷3.14÷2)2×2=3.14×(18÷2÷3.1
cad中218什么意思两个圆的直径有两个直径18的圆2,314183142223.14×(18÷3.14÷2)2×2=3.14x(9÷3.14)2x2=3.14x92÷3.142x2=81x2÷3.14=162÷3.14≈51.593.14×(18÷3.14÷2)2×2=3.14×(18÷2÷3.1
cad中218什么意思两个圆的直径有两个直径18的圆2,314183142223.14×(18÷3.14÷2)2×2=3.14x(9÷3.14)2x2=3.14x92÷3.142x2=81x2÷3.14=162÷3.14≈51.593.14×(18÷3.14÷2)2×2=3.14×(18÷2÷3.1
cad中218什么意思两个圆的直径有两个直径18的圆2,314183142223.14×(18÷3.14÷2)2×2=3.14x(9÷3.14)2x2=3.14x92÷3.142x2=81x2÷3.14=162÷3.14≈51.593.14×(18÷3.14÷2)2×2=3.14×(18÷2÷3.1
cad中218什么意思两个圆的直径有两个直径18的圆2,314183142223.14×(18÷3.14÷2)2×2=3.14x(9÷3.14)2x2=3.14x92÷3.142x2=81x2÷3.14=162÷3.14≈51.593.14×(18÷3.14÷2)2×2=3.14×(18÷2÷3.1
cad中218什么意思两个圆的直径有两个直径18的圆2,314183142223.14×(18÷3.14÷2)2×2=3.14x(9÷3.14)2x2=3.14x92÷3.142x2=81x2÷3.14=162÷3.14≈51.593.14×(18÷3.14÷2)2×2=3.14×(18÷2÷3.1
cad中218什么意思两个圆的直径有两个直径18的圆2,314183142223.14×(18÷3.14÷2)2×2=3.14x(9÷3.14)2x2=3.14x92÷3.142x2=81x2÷3.14=162÷3.14≈51.593.14×(18÷3.14÷2)2×2=3.14×(18÷2÷3.1
cad中218什么意思两个圆的直径有两个直径18的圆2,314183142223.14×(18÷3.14÷2)2×2=3.14x(9÷3.14)2x2=3.14x92÷3.142x2=81x2÷3.14=162÷3.14≈51.593.14×(18÷3.14÷2)2×2=3.14×(18÷2÷3.1