sudden enlargement and bottom drop的意思|示意
美 / /
英 / /
突然扩大和底部下降
sudden enlargement and bottom drop的网络常见释义
突扩跌坎 ...突扩跌坎；冲击力；底坡优化 [gap=1175]Key words: water conservancy and hydropower engineering; sudden enlargement and bottom drop; impulsive force; bottom slope optimization ..