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.

youdao

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.

youdao