connecting board的用法和样例：
例句
- This instrument was composed of four pedicles nails, two longitudinal connecting rods and two transverse connecting plates.
该器械由四枚椎弓根钉，两根纵向连杆和两块横向连接板组成。 - Presented is a novel Fly Back Transformer formed with multilayer plane spiral coils and connecting PCBs and its assembly technology.
介绍一种由多层平面螺旋线圈和印刷线路连接板构成绕组的新颖回扫变压器。
