安装简易，无需特殊的场地基础工事。
随后，他把精力投入到基础设施和防御工事的建造上。
He then invested in infrastructure and built massive fortifications.
如果该员工指出任何实际问题，管理人员必须在本公司实际情形的基础上考虑给予帮助，并随时通知员工事情是如何处理的。
If the employee refers to any practical problems, the management staff must consider helping based on the actual situations of the company, and inform the employee of how things are dealt with.
在总结前人研究成果的基础上，指出了今后的研究方向，这对于中国的煤化工事业具有重要的指导意义。
According as the former research achievements of coal liquefaction residues, proposed its later research direction, and this have important indicating significance for home coal chemistry.
在总结前人研究成果的基础上，指出了今后的研究方向，这对于中国的煤化工事业具有重要的指导意义。
According as the former research achievements of coal liquefaction residues, proposed its later research direction, and this have important indicating significance for home coal chemistry.
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