typedadj.打字的；类型化的动词type的过去式和过去分词形式.typen.类型；典型；铅字v.打字type of variety品种类型type a document打一份文件types of models模型类型type of manhole人孔类型type of printer[计] 打印机类型type of pontoon舟型type of barrier遮挡类型Type Convertion类型转换Types of Values价值观类型types of program节目类型

1. It communicates with the main board by a serial line.
   它和主板间是通过传形线连接。