一、窝点的选择 一般应选在主进水口的两侧、支进水口的中央、凸岸骑背的半坡的两侧、以岸线为国边的凹岸中心区域（小弯）或大弯中心岸线的两侧、常用窝点、水底地形由浅向深或由高向低的转型区域、水草区附近、水底由厚淤泥向沙石底的过渡区或半泥半沙区域等。淤泥太厚或完全 First, the choice of dens should generally be selected at both sides of the main inlet, branch into the center of the nozzle, convex shore riding on both sides of the slope, the shoreline for the country’s concave central area (small bend) or large Bends on both sides of the center coastline, commonly used dens, the bottom of the terrain from shallow to deep or from high to low transition area near aquatic grassland, the bottom from the thick mud to the gravel transition zone or half mud and sand area. Sludge is too thick or completely