standard reference material
短语词组
- environmental standard reference material 环境标准参考物质
- Chinese Standard Reference Material 中国标准参考物质
- developing standard reference material 标准样品研制
- mussel standard reference material 贻贝标准物质
- composing standard reference material 合成标准样品
- coal standard reference material 煤炭标准物质
- geological standard reference material 岩石标准样品
- rice standard reference material 大米粉标准物质
- biological standard reference material 生物标准物质 返回 standard reference material