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- Vibratory pile driver and extractor and soil are researched.When both are simplified, the finite element model is set up. 摘要以振动沉拔桩机和土为研究对象，对二者进行适当简化后，建立其有限元模型。
- All this research results will lay a theoretical basis for designing and improving the vibratory pile driver and extractor. 以振动沉拔桩机和土为研究对象,对二者进行适当简化后,建立其有限元模型。
- The results have indicated that the "threefold" integrated design method can simplify the design process of the vibratory pile driver and extractor and improve the overall design level. 结果表明采用“三化”综合设计法可以大大简化振动沉拔桩机的开发设计过程，提高总体设计水平。
- vibratory pile driver and extractor 振动沉拔桩机
- vibratory pile drivers 振动桩锤
- vibratory pile driver 振动打桩机
- Vibratory piling hammer with pile driver without resonance and its hydraulic control system 一种桩架无共振的液压振动桩锤及其液压控制系统
- The marine pile driver has a hydraulic hammer. 水下打桩机有一个液压锤。
- Diesel pile driver--Safety operation rules. 消防安全操作规程。
- The iron block of a pile driver. 撞锤打桩的铁锤
- The weight that drops in a pile driver or steam hammer. 撞键打舂机或汽棰内落下的重物。
- However, at 8 a.m., the pile driver started hammering. 然而，在早上8点的时候，打桩机开始轰鸣了。
- Effective improvement measures are presented through experimental research in important parameters affecting the operation of model DZ60KS vibratory pile hammer on vibratory pile driver/extractor. 本文通过对影响振动沉拔桩机DZ60KS型振动桩锤性能的重要参数的试验研究?，提出了有效的改进措施。
- Louder than a pile driver, his burps can be heard from a distance of 30 metres. 此人嗝声在30米开外都能听得一清二楚，就连打桩机也自愧不如。
- It is unparallel that track pile driver can be transferred with a flat truck. 步履桩机用一辆平板车转场此为先例。
- His mind may turn to the stock market or he may become fascinated by the operation of a pile driver on his way to work. 他的心思可能转向股票市场，或他在上班途中对打桩机的驾驶操作人了迷感到新奇不已。
- Rigid type vibratory pile hammer 刚性式振动桩锤
- Percussion type vibratory pile hammer 冲击式振动筛
- high frequency hydraulic vibratory pile hammer 高频液压振动锤
- This kind of pile drivers is light in weight abnd convenient in assembling and transportation, and can be put in operation in a short time. 该桩机重量轻、装配及搬运都很方便，并能在短时间内投入施工。
