例句與造句

1. Earliest use of relays for switch control instead of direct operation of magnets over line wires . first die cast switch frame
   最早使用繼電器。用于開(kāi)關(guān)控制，從而代替了電線中對(duì)磁鐵的直接操作。第一個(gè)壓鑄件開(kāi)關(guān)架成形。
2. It's difficult to find switch frame in a sentence. 用switch frame造句挺難的