APP 
In literature,sluices on the Huitong Canal can be classified,according to their functions,as water storage sluices,water intakesluices,sluices in barrages,overflow sluices,etc.The sluices in barragesare regarded as control sluices of modern hydraulic stru （共 430 字） [閱讀本文] >>
說明： 本文檔由創(chuàng)作者上傳發(fā)布，版權(quán)歸屬創(chuàng)作者。若內(nèi)容存在侵權(quán)，請點(diǎn)擊