Processing a batch of parts, originally planned to process 30 per day. When 1/3 of the processing was completed, due to the improved technology, the work efficiency increased by 10%, and the task was completed 4 days ahead of schedule. How many parts are there in this batch?
加工一批零件，原计划每天加工30个．当加工完1/3时，由于改进了技术，工作效率提高了10%，结果提前了4天完成任务．问这批零件共有几个？
<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">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 + (1/10)</gadget>
<output>11/10 = around 1.1</output>

<gadget id="calculator">(2/3) / (11/10)</gadget>
<output>20/33 = around 0.606061</output>

<gadget id="calculator">(2/3) - (20/33)</gadget>
<output>2/33 = around 0.060606</output>

<gadget id="calculator">4 / (2/33)</gadget>
<output>66</output>

<gadget id="calculator">66 * 30</gadget>
<output>1_980</output>

<result>1_980</result>