A section of railway is laid. Team A paves 5.4 kilometers every day, and team B paves 6.1 kilometers every day. The two teams work together to complete it in 18 days. How many kilometers is the length of this section of railway?
铺一段铁路，甲队每天铺5.4千米，乙队每天铺6.1千米，两队合干18天完成，这段铁路长多少千米？
<gadget id="calculator">5.4 + 6.1</gadget>
<output>11.5</output>

<gadget id="calculator">11.5 * 18</gadget>
<output>207</output>

<result>207</result>