传统上，我们使用一根置于空气中的金属终端【富兰克林避雷针】和一条与集成的接地装置连在一起的下导线路来保护建筑物。
Traditionally structures have been protected by the use of air terminals (Franklin Lightning Rods) and a network of downconductors connecting to an integrated grounding system.
流行的格式是png、pdf和jpeg，然后可以把它们动态地或直接地传递给x终端、网页或通用的图形查看程序。
Popular formats are PNG, PDF, and jpeg, and they can then be presented either on the fly or directly to an X terminal, Web page, or a general graphic viewer utility.
高处的终端D'连接线圈的A'中心，其它终端更适宜连接地线，同样，对于线圈C'在此之上鉴于安全再次提醒。
The elevated terminal D' connects with the centre of the coil A' and the other terminal is connected to earth and preferably, also, to the coil C' again for safety reasons as mentioned above.
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