Using flow sediment laden formula set by Hanqiwei and overyear runoff,sediment data,the sediment retaining prediction of Manwan reservoir is carried out.
There are not many boats in this little river;only a few dinghies, laden with dry branches and twigs, are moving leisurely along to the tired plash!plash!of their oars.
The reason is , that they are over laden with inert ideas. Education with inert ideas is not only useless: it is , above all things, harmful— corruption optimi, pessima.