To process a batch of parts, the master and apprentice can process 34 parts in 2 hours. It is known that the number of parts processed by the master for 3 hours is 2 more than the number of parts processed by the apprentice for 4 hours. How many parts does the master process per hour?
加工一批零件，师徒两人合作2小时可加工34个．已知师傅加工3小时的零件数比徒弟加工4小时的零件数还多2个．师傅每小时加工零件多少个？
<gadget id="calculator">34 / 2</gadget>
<output>17</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">17 - (2/3)</gadget>
<output>49/3 = around 16.333333</output>

<gadget id="calculator">4 / 3</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">(4/3) + 1</gadget>
<output>7/3 = around 2.333333</output>

<gadget id="calculator">(49/3) / (7/3)</gadget>
<output>7</output>

<gadget id="calculator">17 - 7</gadget>
<output>10</output>

<result>10</result>