screw value

Objective: Discussion calcaneum bone fracture multi-layered screw CT performance and clinical value.

目的: 探讨跟骨骨折的多层螺旋CT表现及其临床价值.

This text recommends the solid example to introduce non-standard rectangle screw thread ring gauge and plug gauge with the designing project, designing way of thinking, designing the step and calculation method, there is certain reference value for designing all kinds of screw thread measure gauge.

通过实例介绍了非标准矩形螺纹环规和塞规的设计方案、设计思路、设计步骤及计算方法，对设计螺纹量规具有一定的参考价值。

AIIMS classification can thoroughly evaluate the placement and complications of thoracic pedicle screw in the spinal kyphoscoliosis deformity which has some practical value.

AIIMS分型能较全面地评价脊柱侧后凸畸形胸椎椎弓根螺钉置入后的位置和并发症情况，有一定临床应用价值。

The front earth pressure value could also be controlled in the range of set value by adjusting the advancing speed, screw conveyor revolving speed and cutting wheel revolving speed, which lead to reduce ground deformation.

通过实时调节控制推进速度、螺旋输送机转速以及刀盘转速，可以控制正面土压力在设定范围内，从而有效减少地表变形。