小尺度封闭空间
small enclosures
small enclosure
charge mixture production line
small-enclosed room
Small enclosed-room
封闭、半封闭空间
hermetic and half-hermetic spaces
封闭空间构成要素
elements of composition in closed space
超狭长两端封闭空间
very long-narrow sapce with two closing ends
突扩燃烧
sudden expansion combustion
突扩层流
sudden expansion laminar flow
突扩跌坎
sudden enlargement drop-sill
sudden lateral enlargement and bottom drop
突扩突跌
sudden enlargement and sudden drop
突扩突缩
sudden enlargement and shrink