浅开挖 meaning in Chinese

shallow cut

On the other hand , the velocity may also be increased by excavating another channel , which should be treated cautiously . ( 2 ) the change of flow rate in a typical branching rocky channel is related to excavation area scope and mode . more excavation area scope and width , more increase in flow rate
( 2 )石质汊流滩汊道分流比的变化一般与汊道的开挖面积、开挖范围以及开挖方式等因素有关，即开挖面积越大，则分流比增加越多；开挖范围越广，分流比增加越多；相同开挖面积情况下，宽浅开挖比深窄开挖对分流比的影响要大。