论文部分内容阅读
现值整編之际,各站都在進行計算与制圖工作,工作量大,用透明紙繪圖的地方很多,因此必須注意透明紙的充分利用和節約。現介紹一种容易配制的擦圖藥水以供采用
At the time of the current reorganization, each station is carrying out calculations and drawing work. The workload is large and there are many places for drawing on transparent paper. Therefore, attention must be paid to the full use and saving of transparent paper. Introduce an easy-to-prepare pictogram syrup for use