shoaladj.浅的n.浅水处；沙洲；鱼群；一大群v.（使)变浅；群聚shoal patches浅滩shoaling water浅水区shoals of fish鱼群Shoal flounder冈氏斯亚鲆shoal detector鱼群探测器shoaling factor浅水系数shoal indicator浅滩标志shoal and rapid滩险shoal materials淤积物shoal reservoir边滩水库