常見例句雙語例句When it sailing on low speed, the principal component of wake is the frictional wake, next is the potential wake, and wave wake is very small, which can be ignored.該型船在中低速時,伴流的主要成分是摩擦伴流,其次是勢伴流,而由興波引起的伴流很小,可以忽略不計; 返回 frictional wake