有些电工仪表的刻度盘上有一个弧形缺口缺口下面有一面镜子如图所示它的作用是 A．读数时使眼睛处于正确的位置 B．增加刻度盘的亮度 Sketch Coloring Page

有些电工仪表的刻度盘上有一个弧形缺口缺口下面有一面镜子如图所示它的作用是 A．读数时使眼睛处于正确的位置 B．增加刻度盘的亮度 Template

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tomski有些电工仪表的刻度盘上有一个弧形缺口缺口下面有一面镜子如图所示它的作用是 a．读数时使眼睛处于正确的位置 b．增加刻度盘的亮度 coloring

有些电工仪表的刻度盘上有一个弧形缺口缺口下面有一面镜子它的作用是 A．读数时使眼睛处于正确位置B．增加刻度盘的亮度C．检验仪表是否水平 sketch template

有些电工仪表的刻度盘上有一个弧形缺口缺口下面有一面镜子它的作用是 A．读数时使眼睛处于正确位置B．增加刻度盘的亮度C．检验仪表是否水平 sketch template

7．有些电子仪表的刻度盘上有一弧形缺口缺口里面有一块平面镜如图3所示它的作用是 A．增加刻度盘亮度 B．读数时使视线位于正确 sketch template

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