The sales rep filter operation is shown in Figure 9.
Sales Rep 过滤器操作符如图 9 所示。
Note: It is necessary to have a default value for the variable, in order to preview the results of the filter operation.
注意：该变量需要有一个默认值，以便预览过滤操作的结果。
The filter operation optimization and technical transform of the wax deoiling unit in Daqing Refinery was introduced.
介绍了大庆炼油厂蜡脱油装置过滤机操作的优化及技术改造。
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