hanrui2008
Stop all traffic and make it either wait until the work is done or instruct drivers to back up and find some other road to take.停止所有的交通，并使它，无论是等待，直到工作完成或指示司机回来，并找到一些其他道路采取。Close half the road and allow traffic run altemately through the remaining open lane .近一半的道路，使交通运行交替通过剩余的开放车道。Don't do anything and just do the job不要做任何事情，只是做的工作Define the meaning of the term "Safe Approach Distance"?定义“安全法距离”的含义？Name two methods used to confirm an overhead line is "dead"用以确认架空线的2种方法是“死的”What is an access permit?什么是访问许可证？List two items of information shown on an access permit.清单2项在访问许可证上显示的信息。Who can issue an access permit?谁能发出通行证？How many persons in an access party need to sign on to an access permit?有多少人参加了一个访问许可证？Put a tick against the correct choice or choices.在正确的选择或选择上放一个滴答。What does it mean to isolate a power line?隔离一个电源线是什么意思？
怀疑本身
变电所一次设备 substation primary equipment 变电所二次设备 substation secondary equipment ,一次电压 primary voltage二次电压 secondary voltage
