large diameter drilling的例句大全

Research on large diameter drilling in hard rock

大直径硬岩钻进技术的探讨

Large diameter drilling piles have been extensively used in foundation engineering.

大直径钻孔灌注桩在基础工程中的应用非常广泛.

The difference between large diameter drilling and oil drilling is reviewed with their characteristics.

论述了大直径钻井工程与石油钻井的不同特点.

Future methods of development and research of large diameter drilling in hard rock are proposed.

提出了大直径硬岩取芯钻进中存在和需解决的问题；指出了大直径硬岩取芯钻进技术的发展研究方向。

Study on Fluid Velocity at The Hole Bottom in Large Diameter Reverse Circulation Rotary Drilling

大直径反循环回转钻井底冲洗液流速的研究

According to field experiments, the authors assessed performance of KSC-127 fluid efflux hammer, analyzed its adaptation to CSDP and discussed drilling technology of large diameter non-coring percussive rotary drilling.

根据现场试验，评价了KSC-127冲击器的性能，分析了其对大陆科学深钻的适应性，且对大直径全面破碎冲击回转钻进工艺进行了讨论。

APPLICATION OF THE PERCUSSIVE REVERSE CIRCULATION DRILLING IN DRILLING A LARGE DIAMETER PILING EMBEDDED ROCK Status Quo and Trend of Percussive Reverse Circulation Pile Hole Drill Rigs in China

冲击反循环技术装备在大口径嵌岩钻进中的应用我国冲击反循环桩孔钻机现状与发展

Feasibility and Drilling Technology of Large Diameter Air Operated Down Hole Hammer in Medium Depth Hole Drilling

大直径风动潜孔锤中深并孔钻进的可行性分析

Development of Large diameter Rock Socket Drilling Technology and its Prospect

大口径嵌岩钻进技术发展与展望

When used to install large diameter bored piles in bouldery formation, the method exhibits fully such technical advantage as high hole completion efficiency, good quality, little environmental pollution and is an advance of the domestic pile foundation drilling technology.

在卵砾石层中施工大口径钻孔桩，该工法充分显示出成孔效率高、质量好、环境污染小等技术优势，是国内桩基工程施工技术的新发展。

The working characteristic of wire rope for well drilling, and the use conditions, structure, specification and production technology requirements of large diameter wire ropes for drill oil derrick base rising are analyzed.

分析钻井用钢丝绳的工作特点，钻机井架底座起升用粗直径钢丝绳的使用工况条件、结构、规格和生产技术要求；

Status and Development of Large Diameter Hard Rock Drilling Technique

大直径孔硬岩钻进技术现状及发展

Development and Application of Drilling System on a New Generation of Large Diameter Pneumatic Down-the-hole Hammer

新一代大直径气动潜孔锤钻进系统的研制与应用