The earth auger is the important pilling machine under construction.
螺旋钻孔机是用于基建施工中一种重要的桩工机械。
This paper optimized the principal axis of the earth auger by ANSYS, introduced the mathematic model and the steps of the optimization design.
用有限元分析软件ANSYS对挖坑机主轴进行优化设计，从理论上说明优化设计的数学模型，并给出具体的设计步骤。
An analysis related to various kinds of soil cutting by earth auger, this paper puts forward that running speed of frill should be faster than critical speed so as to increase the efficiency of drill.
通过分析长螺旋钻机在切削各类土质时，钻具的角速度与土块运动机理关系，提出确定钻具临界的方法，而工程施工中钻杆的实际转速应大于临界转速，以提高钻机的工作效率。
This grows face plate of lock of heaven and earth 64 centimeters, weigh 17 kilograms, forging by manual sculpture, pure copper completely and become, enchasing 1500 to break auger, bright is dazzling.
这把天地锁面板长64厘米，重17公斤，全由手工雕刻、纯铜锻造而成，并镶嵌着1500颗碎钻，璀璨夺目。
This grows face plate of lock of heaven and earth 64 centimeters, weigh 17 kilograms, forging by manual sculpture, pure copper completely and become, enchasing 1500 to break auger, bright is dazzling.
这把天地锁面板长64厘米，重17公斤，全由手工雕刻、纯铜锻造而成，并镶嵌着1500颗碎钻，璀璨夺目。
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