protocoln.外交礼仪；草案；协议；规章制度；【医】记录；科学实验报告protocol decoding协议解码protocol criterion协议规范protocol statement协议语句protocol transform协议转换protocol mechanism规约机制protocol emulation协议仿真protocol knowledge协议知识protocol tunneling协议隧道法protocol mediation协议适配protocol plug-in规约插件