See the point in the middle, at the origin, is a saddle point. If you look at the tangent plane to this graph, you will see that it is actually horizontal at the origin.
我们来看中间的那个点，在原点上，那就是一个鞍点，在这点做一个切平面,你可以看到这个切平面,是在原点上水平的。
Use to add a single horizontal ordinate dimension. Attach one endpoint to ordinate origin and one to the feature.
用于添加一个水平坐标尺寸。将一个端点连接到坐标原点，一个端点连接到部件。
The distribution of rare metals and re in space and origin correlated with granite of Yanshan period with horizontal and vertical zonal rules.
稀有稀土金属矿床在空间分布与成因上，与燕山期花岗岩体密切相关，往往具有水平分带和垂向分带规律。
During machining on the horizontal machining center, the automatic compensate and setting of the workpiece coordinate origin is performed after the workbench's arbitrary Angle revolving.
实现卧式加工中心机床在零件加工过程中，工作台任意角度旋转后，工件坐标系原点得到自动补偿与设定。
During machining on the horizontal machining center, the automatic compensate and setting of the workpiece coordinate origin is performed after the workbench's arbitrary Angle revolving.
实现卧式加工中心机床在零件加工过程中，工作台任意角度旋转后，工件坐标系原点得到自动补偿与设定。
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