2、新增对材质和喷头重量的要求的翻译：2, new material and head weight requirements 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

2, the new material and nozzle weight

2, new material and head weight requirements

2nd, Addition to material quality and nozzle weight request

2, * new material to the required weight and sprinkler

2, new material and head weight requirements