河道研究 meaning in Chinese

river study

However , people studied the riverway mainly by field survey and landform map contrast before . because of the limits of man ' s field view and complexity of field survey route , it is a difficult bottle neck for people to make synthetical analysis on geological structure , yangtze river shoal , floodplain , terrace , and microcosmic suspended load on macroscopical scale
而以往的河道研究大多数是通过地面调查和地形图室内对比分析来研究的(少数运用航片) ，由于受人的视域范围及调查工作路线的布置的复杂度影响，对区域宏观尺度下的地质构造、长江沙洲、漫滩、阶地及河流微观领域的悬浮物等作综合性的研究便成为了瓶颈。