主働 しゅどう土圧 どあつ係数 けいすうでしょう
shudō doa tsukeisūdeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 主働土圧係数

1. Active earth pressure coefficient, likely.; Probably the active earth pressure coefficient.

Polite
Presumptive
Conjecture