２）材料检测：原材料检测由商品砼公司提供。的翻译：2) materials testing: testing of raw materials provided by commodity concrete Corporation. 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) Material Testing: testing of raw materials provided by the commercial concrete company.

2) materials testing: testing of raw materials provided by commodity concrete Corporation.