E - 2a以后被升级了到E - 2 B标准通过a(然后新)可编程序的高速数字计算机的介绍。
The E-2A was later upgraded to E-2B standard through the introduction of a (then new) programmable high-speed digital computer.
由于拥有众多封闭循环选择，数字计算机控制系统营造商在部分程序存储器中引入视觉编辑显示。
Along with the many canned cycle options, CNC builders introduced displays for visual editing of part programs in memory.
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