A cylinder of wood is made into the largest cone, and the volume of the trimmed part is 90 cubic decimeters. What is the volume of the original cylinder?
将一根圆柱形木料制成一个最大的圆锥体，削去部分的体积是90立方分米，原来圆柱的体积是多少？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">90 / (2/3)</gadget>
<output>135</output>

<result>135</result>