We have good connection with material and equipment suppliers and have a special department and it network to source materials that are most suited for the particular project.

我们与材料和设备供应商有良好的关系，为符合特殊项目的要求我们还设置了专门的部门和IT网络系统以获取最合适的材料。

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The special topography, climate conditions and the underlying surface with the source of the abundant sand were the material base of forming sand and dust storm.

特殊地形、气候条件和富含沙尘源的下垫面是形成沙尘暴的物质基础；

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