三用电表 multimeter ; volt-ohm-milliammeter
三．通用表表达式 Common Table Expressions
指针式三用电表 Ohm Meter ; analog volt-ohm meter
每个字母用三颗星表示 Drei Sterne pro Buchstabe anzeigen
介绍维修DO30系列数字式三用表校验仪的一般方法，并以此校验仪为例，讲解几种维修方法的应用。
The article introduces the maintenance of DO30. It deals with several practical maintenance ways by giving examples.
在第三阶段，用更具体的关系来修改这些将存在于不同表的实体间的概念。
In the third phase, you modify the concepts with more specific relationships that will exist between entities in the various tables.
图10：用每个迭代最后的重要的交付日期对整个构建阶段分成三个六周周期的综合时间表进行采样。
Figure 10: Sample master schedule that has the overall Construction phase divided into three six-week periods, with important delivery dates at the end of each iteration.
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