The flow with sediment trapped by the slit of the vortex tube can form vortex inside the tube and exclude efficiently the coarse sediment near the bed layer in front of the tube.
进入涡管槽口的挟沙水流会形成强有力的螺旋流沿涡管流动，能有效地排除底部推移质泥沙。
A new type of multi-slit streak tube was designed wi th large efficient area, smaller bulk and lighter weight.
设计了一种有效面积大、体积小、重量轻的多狭缝条纹变相管。
A new type of multi-slit streak tube was designed wi th large efficient area, smaller bulk and lighter weight.
设计了一种有效面积大、体积小、重量轻的多狭缝条纹变相管。
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