图1展示了如何对来自所分析数据源的单个表中的列，执行标量规则。
Figure 1 shows how to execute a scalar rule on columns that come from a single table from the analyzed data source.
你在这次的活动中表现得怎样？对照评估里的量规表为自己打个分吧。
How is your work? Now you can download the sheet of evaluation and then give yourself a mark.
如果量规（此处应该就是“压力表”）读数过高，将制动螺钉顺螺线方向放松； 如果量规读数过低，则向相反方向调整制动螺钉。
Loosen the clamp screw(s) and move slightly toward the helix if gage is reading high. and away if reading low.
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