To increase the success rate of the teamwork between oil tube transport ejection hole and stratum testing set mainly needed to increase the level of shock absorption and leak prevention.
提高油管传输射孔与地层测试器联合作业的一次性成功率，主要在于提高减震与防漏水平。
In social transition course of China, society level structure changes quickly, new benefit groups with stratum are being formed step by step.
中国在社会转型过程中，社会层级结构迅速嬗变，新的利益群体和阶层逐步形成。
The parameters considered in this study were depth of stratum, fine content, D50, depth of water level, plastic index, SPT-N and PGA.
在这项研究中考虑的参量是地层的深度，D50，水平面的深度，塑料索引，SPT-N和PGA。
Through contrast and analysis, it was found that this method was obvious superior to drilling method in soft, water content big stratum, the air operated tamping pipe law construction level freeze h…
经过对比分析，在松软、含水量大的地层中，气动夯管法施工水平冻结孔比钻进法更具有一定的优越性。
This paper sets forth the significance of the analysis of the structure of tourism products and analyzes the structure of tourism products from the vertical and level stratum.
阐述了旅游产品结构划分的意义，从垂直层面和水平层面对旅游产品结构进行了划分。
This paper sets forth the significance of the analysis of the structure of tourism products and analyzes the structure of tourism products from the vertical and level stratum.
阐述了旅游产品结构划分的意义，从垂直层面和水平层面对旅游产品结构进行了划分。
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