The equipment maintain worker check the machine at initial job set up and the line leader compare with sample to verify the set-up and last piece wire.
机器管理者将机器在开始工作时调试好，小组长比较样品，确认调试时的和结束时的样品线。
3
But if a bird (or a power line worker) accidentally touches an electrical "ground" while in contact with the high-voltage wire, she completes an electrical circuit.