A cuboid is 21 cm long, 8 cm wide, and 6 cm high, and its volume is 9 times that of a cylinder. Given that the base area of the cylinder is 7 square centimeters, what is the height of the cylinder in centimeters?
一个长方体长21厘米，宽8厘米，高6厘米，它的体积是一个圆柱体体积的9倍．已知圆柱的底面积是7平方厘米，这个圆柱的高是多少厘米？
<gadget id="calculator">21 * 8 * 6</gadget>
<output>1_008</output>

<gadget id="calculator">1_008 / 9 / 7</gadget>
<output>16</output>

<result>16</result>