Precision cast iron platform: According to the implementation of the national standard verification procedures, namely, 0, 1, 2, 3 four grades.
铸铁平台精度：按国家标准计量检定规程执行，分别为0、1、2、3四个等级。
Considering the use of cast iron plate (cast iron platform) local wear and tear of the plate after the inhomogeneity of the local error control, more necessary.
考虑到使用中铸铁平板(铸铁平台)的局部磨损及修后平板的不均匀性，局部误差的控制更有必要。
Cast iron platform USES: used for machinery, engine power test, commissioning, and has good stability and toughness flat surface with T-slots, can be used to fixed laboratory equipment.
铸铁平台用途：用于机械、发动机的动力实验，设备调试，具有较好的平面稳定性和韧性，表面带有T型槽，可以用来固定实验设备。
Cast iron crossed platform, can use wear to restore its precision.
铸铁划线平台使用磨损后，可以重新修刮恢复其精度。
Cast iron crossed platform, can use wear to restore its precision.
铸铁划线平台使用磨损后，可以重新修刮恢复其精度。
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