App说明圆形放坡地坑\(V=\frac{1}{3}πH(r^2+r^2+R\cdotr)\)或\(V=π(R^2H+RKH^2+\frac{1}{3}K^2H^3)\)r——圆形放坡地坑H——圆形放坡地坑R—
App说明矩形四边形放坡地坑体积$$V=(A+KH)(B+KH)H-\frac{1}{6}KH²(3B+2KH)$$或$$V=A\cdotB\cdotH+\frac{1}{2}KH²(2A+B)+\frac
App说明椭圆体表面积与体积计算公式:\(F=\frac{4π}{√2}\cdotb\cdot√[a^2+b^2]\)\(V=\frac{4}{3}πabc=4.189abc\)\(V=4.189ab^2(当b=c