块规在使用、清洗、检定等工作中必然要使用竹夹子、医用摄子等工具夹持操作。这些工具本来是用来夹取纸张、棉花、沙布的，并不适用夹取大小重量各异的矩形块规。操作中易出现夹取困难、打滑、脱落、弹飞等现象。通常搬运工在夹取五块红砖时用的工具却是运用自如可靠，其... Block rules in the use, cleaning, verification and other work will inevitably use bamboo clips, medical photo and other tools clamping operation. These tools were originally used to grip paper, cotton, scrim, and not suitable for clipping the size of the weight of different rectangular block rules. The operation is easy to grip difficult, slippery, shedding, flying and so on. Usually porters in the handling of five red brick tools are used when reliable, its ...