凡带有载开关运输的，应将开关油室用 U 形管与本体连通。
If transported with on-load tap changer, the tap changer compartment shall be connected with main body by U-shaped tube.
当安全锤离开安全锤座时，开关按钮弹起，电路连通，此时发声器发出报警信号。
When the hammer safety leaves the safety hammer holder, the switch button ejects, and the circuit is connected, so the sounder issues an alarming signal.
根据网络通信模拟器的要求和工作原理，提出了用开关矩阵函数模拟网络的连通关系以及在相关链路上模拟信道误码的新方法。
Based on the principle and requirements of the NCS, a new scheme that USES the on off matrix function to represent the network topology and bit error rate of each link is presented.
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