Based on the example of an engineering work, the experience of application of fender piles for antifloating and external wall form work of underground building was introduced.
本文结合一工程实例，介绍了围护桩兼作地下程抗浮和外墙模板的经验，实践证明效果良好。
The structure form, work principle and hydraulic system of the CAT impact ripper was introduced in this paper, and its technique features were interpreted in brief.
本文介绍CAT冲击式松土器的结构组成与工作原理，简述了其技术性能及特点。
The article introduces the water loop heat pump air-conditioning's form, work principle, and makes it energy analysis, summarizes its applicability, economics, puts up WLHP optimizing design methods.
介绍了水环热泵空调系统的组成、工作原理，并对该系统作了节能性分析，总结出该系统的适应性、经济性，最后提出了水环热泵空调系统的优化设计方法。
The article introduces the water loop heat pump air-conditioning's form, work principle, and makes it energy analysis, summarizes its applicability, economics, puts up WLHP optimizing design methods.
介绍了水环热泵空调系统的组成、工作原理，并对该系统作了节能性分析，总结出该系统的适应性、经济性，最后提出了水环热泵空调系统的优化设计方法。
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