在中断面上根据断面形势安设一条断面索(用铁丝就可以,不必用钢丝缆),不要安的太高或太低,太高了影响目标不准确,太低会妨碍测船或皮筏通过,于断面索上量好距离,并拴上红白黑等显明的布条或标记,施测时可按照标记自左至右逐次进行测量。这样不但测点均匀,而且测点固定,不用仪器即可, In the interrupted surface according to the cross-sectional situation to install a cross-section cable (with wire can be, do not have to use steel wire cable), do not worry too high or too low, too high affect the target inaccurate, too low will interfere with the test boat or raft Through the cross-section cable on the amount of a good distance, and tied to the red and white black and other obvious cloth or mark, when the test can follow the mark from left to right successive measurements. This will not only point uniform, and the measuring point is fixed, you can not instrument,