A conical container is filled with water to a depth of 18 cm. Pour water from a conical container into a cylindrical container with the same bottom and height, what is the depth of the water in centimeters?
一个圆锥形容器盛满水，水深为18厘米．将圆锥形容器的水倒入和它等底等高的圆柱形容器中，水深为多少厘米．
<result>6</result>