The Survey Working Group, an informal grouping of non-governmental organizations and agencies of the United Nations system involved in landmine impact surveys, has been working on formalizing a protocol for the implementation of rapid surveys.
20. 调查工作组，作为参与地雷影响调查的非政府组织和联合国各机构的一个非正式小组，始终在促使一项进行快速调查的议定书正式生效。