Only one national flag is a solid color: the green flag of Libya.
只有一面国旗是纯色：利比亚的绿色国旗。
Companies in close collaboration with national enterprises, solid sales base.
公司与全国多家企业密切协作，产品销售基地稳固。
The core equipment of the system: fecal solid-liquid separator, the machine is national patent product.
其中该系统核心设备：粪便固液分离机，该机为国家专利产品。
The core equipment of the system: fecal solid-liquid separator, the machine is national patent product.
其中该系统核心设备：粪便固液分离机，该机为国家专利产品。
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