To change the attributes for a particular text string, select the text on the design surface, and then set the value you want in the Properties view.
要改变一个特定文本字符串的属性，请选择设计图面中的文本，然后在Properties视图中设置您希望的数值。
What is the average tubing temperature if the surface temperature of the tubing string is 700f and the temperature at the bottom is 2100f?
如果油管柱的井口温度是华氏700f，井底温度是2100f，它的平均温度是多少？
The partial arc may derive from the surface of polluted insulator string and form the air gap arc during the pollution flashover process at low air pressure.
低气压下绝缘子污闪放电过程中局部电弧存在飘离绝缘子表面形成空气间隙电弧的现象。
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