くい しゅう めん摩擦 まさつ りょくなら
kuishūmen masatsuryokunara

Noun
Da Copula

The "-nara" conditional form ("if/when…") of 杭周面摩擦力

1. If/when friction on the HangZhou surface... ; If there is friction on the HangZhou surface...

Nara Conditional