环境事务指定工作人员(Designated Officials For Environmental Matters)
...ion control 沙漠治理; 治沙; 沙漠化控制design temperature 设计温度Designated Officials for Environmental Matters (DOEM) 环境事务指定工作人员designation (of a drum) 容器桶上的标记desirable range of quality (of the ambient air) 适当环境空气...
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