气压自动卸荷导轨是一种新型机床导轨，本文给出了这种导轨的设计方法。
Designing method for the automatic regulating pneumatic unloading guideways was given, which is a new kind of machine-tool guide ways.
其加卸荷过程以及负荷保持时间全部系自动控制。
The loading process and the duration of loading are controlled automatically.
通过标志矩阵自动搜索新的开挖边界节点，并由单元应力计算出节点的卸荷荷载。
It can automatically search the node of the new boundary through symbolic matrix, and calculate the unloading of the node by stress of element.
安装灯具时，灯具上升到自动挂钩卸荷装置的位置后自动挂到吊钩的钩形槽里；
When installed, the high-pole lamp is automatically hung in a hook-shaped trough of the hanging hook after raising to the position of the automatic hanging and unloading gear;
自动调节气压卸荷导轨利用压缩空气支承部分导轨载荷，以降低导轨面上的正压力，从而降低摩擦力。
In the automatic regulating pneumatic unloading guideways the compressed air is used to support part of the guideway load in order to reduce the normal force on the guideways.
试验力的施加、保荷和卸荷自动完成。
Testing force can be loaded, kept and unloaded automatically.
HRM - 45dt型电动表面洛氏硬度计是一种通过电动加载、保荷卸荷的半自动测试金属材料表面硬度的洛氏硬度计。
HRM-45DT motorized Superficial Rockwell Hardness Tester adopts motorized testing method. Its testing force can be loaded, kept and unloaded automatically. Avoid man-made error and easy to use.
HRM - 45dt型电动表面洛氏硬度计是一种通过电动加载、保荷卸荷的半自动测试金属材料表面硬度的洛氏硬度计。
HRM-45DT motorized Superficial Rockwell Hardness Tester adopts motorized testing method. Its testing force can be loaded, kept and unloaded automatically. Avoid man-made error and easy to use.
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