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.
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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