reed pipe
2.An instrument having a flexible bag inflated either by a tube with valves or by bellows, a double-reed melody pipe, and from one to four drone pipes. Often used in the plural.
4.The scheme embraces four projects, namely (1) to build up sluices at Anqiu Bridge and Nanzhou Bridge (and the one at Anqiu Bridge is the first choice) so that pollutants can be from entering the lake;2)as a necessary accessory for the above project, to supplement water capacity from Changdang Lake as a strategic water source into the protection program, and culvert-pipe plan is recommended from two other alternatives through systematic analysis; 3)to carry out comprehensive realignment for some reed regions which are located at the entrances of the lake, and to develop a wetland ecosystem mainly with some reeds; and 4) to set up a green protection belt right round the lake, including planting reeds at lakebeach, building forest belt, developing bases of green foodstuff and disposing sludges in the lake base.
