无论是制做、加工还是修理电器,经常要用到尺子。这里向读者介绍的是一把多用标尺,它除了可以当作直尺使用外,还带有简单算数功能。比如下料时需要“方求圆、或由“圆求方”(这里的“方”可以是正方、六方及长方),有了这把标尺,将给您带来很多方便,您不妨试一试。 如图1所示,这是常见的由“正方求圆”或由“圆求 Whether making, processing or repairing electrical appliances, rulers are often used. Introduced to the reader here is a multi-purpose ruler, in addition to its use as a ruler, but also with a simple arithmetic function. Such as the need to cut the material when seeking round, or from the round of the party (where the “square” can be square, square and rectangular), with this ruler, will give you a lot of convenience, you may wish to try A try. As shown in Figure 1, this is common by the “square seeking round” or by “round seeking.”