求翻译：2002年6月29日第九界全国人大常委会第二十八次会议通过是什么意思？

Ninth in the world twenty-eighth meeting of the NPC Standing Committee adopted on June 29, 2002

June 29, 2002 National People's Congress Standing Committee in the first 9 will be the 28th time through conference

On June 29, 2002 the ninth Standing Committee of the National People's Congress 28th conference passed

June 29, 2002, adopted by the NPC Standing Committee 28th meeting

Ventilation operations. The operator must go through specialized training, strict adherence to rules. Proposed operators wear self-absorption filter respirators (half-mask), wearing protective chemical safety glasses, wear protective overalls on infiltration, wear rubber gloves.