英语达人呢.我又来了.Unfortunately,Babbage never assembled his compute

英语达人呢.我又来了.
Unfortunately,Babbage never assembled his computer,and i was not until the 1900s,with the invention of the electron tube,that components for a viable electronic computer became available.求翻译,that components for a viable electronic computer became available.我怎么觉得这句这么拗口呢.这个元件为一个可行的电子计算机成为可能.