海岸堤防
buttress-type coastal dike(扶牆式堤防)
concrete armored coastal dike(混凝土被覆堤防)
concrete block foot-protection works(混凝土護基)
concrete block-pitched coastal dike(砌混凝土塊堤防)
landward slope pavement(裏坡被覆工)
slope-type coastal dike(傾斜式海岸堤防)
stone piled front slope pavement(堆石式表坡被覆工)