The protecting mechanism and type of apron protection againstthe scour at abutment, spurs, piers and roadbed along the river havebeen analyzed comprehensively, and the equation with apron scourdepth and apron width has been developed in this paper.是什么意思_The protecting mechanism and type of apron protection againstthe scour at abutment, spurs, piers and roadbed along the river havebeen analyzed comprehensively, and the equation with apron scourdepth and apron width has been developed in this paper.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句