This year's output is equivalent to last year's (9/10), what is the quantitative relationship?
今年的产量相当于去年的(9/10)，数量关系式是多少．
<gadget id="calculator">9 / 10</gadget>
<output>9/10 = around 0.9</output>

<result>9/10 = around 0.9</result>