国家 こっか基幹 きかん技術 ぎじゅつでしょう
kokka kikangijutsudeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 国家基幹技術

1. Probably national core technology.; Likely key national technology.

Polite
Presumptive
Conjecture