材料质量检测和材料进出口贸易等工作。的翻译：Quality inspection of materials and materials import and export trade, and so on. 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Quality of materials testing and materials import and export trade and so on.

Quality inspection of materials and materials import and export trade, and so on.

Material work and so on quality examination and material import-export trade.

Quality of the materials testing and materials such as import.

Quality inspection of materials and materials import and export trade, and so on.