Master Zhang processed 60 parts in 4 hours. According to this calculation, how many parts can be processed in total for 8 hours? (Answer with proportional knowledge)
张师傅4小时加工了60个零件，照这样计算，再加工8个小时，一共能加工多少个零件？(用比例知识解答)
<gadget id="calculator">60 / 4</gadget>
<output>15</output>

<gadget id="calculator">15 * 8</gadget>
<output>120</output>

<gadget id="calculator">15 * 4</gadget>
<output>60</output>

<gadget id="calculator">120 + 60</gadget>
<output>180</output>

<result>180</result>