They worked with hand trowels, a plywood form for lining the shaft with concrete, inch by inch, and a sturdy hand-built crank for lowering a man to the bottom and sending up buckets of sand.
他们的作业工具是：挖土用的手工泥铲、浇筑混凝土井壁用的胶合板模板、还有手工制作摇杆。摇杆将一个人送到井底，那个人就在井底一点点挖土然后再通过摇杆把沙子一桶桶送到地面。
However to the large deformation shaft without crack, general predictive theory has been applied to built up the multi-steps straightening stroke predictive algorithm.
针对单弧度弯曲大变形无裂纹轴校直问题，根据广义预测控制理论，建立了多步校直行程预测算法。
As there were leak on contact place between shaft and rotor body in built up hollow rotor, dropping discharg gas speed of pump and efficiency applied of oil sealed sliding vane rotary vacuum pump.
组合式空心转子由于轴头与转子体之间的结合面存在着渗漏，使泵的抽气效率性能下降，从而影响其在应用中的效率。
A two dimensional mathematic model is built up to simulate the blast flow status inside shaft lime kiln.
建立了竖炉石灰窑气体流动二维数学模型，模拟出了竖炉石灰窑内气体流动状态。
The paper mainly introduces a kind of multi-tool built-up processing method for balanced shaft diameter of single cylinder engine.
本文主要介绍了单缸柴油机平衡轴两端圆柱轴径的一种多刀组合加工方法。
It is pointed out that during emergency braking on shaft hoists, the built-up time of brake torque has considerable influence on the formation of dynamic tension in the hoisting ropes.
本文指出当矿井提升机紧急制动时，制动力矩的建立时间将对钢丝绳中的动张力产生相当大的影响。
Based on this view, the multi-step straightening stroke algorithm was built up to the shaft with single-edged crack.
基于这一观点，结合校直行程递推算法，建立了单边径向裂纹轴的多步校直行程递推算法。
Based on this view, the multi-step straightening stroke algorithm was built up to the shaft with single-edged crack.
基于这一观点，结合校直行程递推算法，建立了单边径向裂纹轴的多步校直行程递推算法。
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