By analysis of the morphological process in longitudinal profile, crosssection and river pattern, the law of river course evolution at Yellow river estuary was summarized.
通过分析黄河口河道在纵剖面、横断面、河型等方面的演变过程,总结归纳出黄河口河道的演变规律。
2
The longitudinal cracks along bond line and the transverse cracks which cut across the weld metal crosssection inside weld metal were formed, while X65 pipe line steel was welding.