connecting board的用法和樣例：
例句
- This instrument was composed of four pedicles nails, two longitudinal connecting rods and two transverse connecting plates.
該器械由四枚椎弓根釘，兩根縱向連桿和兩塊橫向連接板組成。 - Presented is a novel Fly Back Transformer formed with multilayer plane spiral coils and connecting PCBs and its assembly technology.
介紹一種由多層平面螺旋線圈和印刷線路連接板構成繞組的新穎回掃變壓器。
