shell longitudinal stiffeners 舷侧纵骨扶强材
shell side longitudinal 舷侧纵桁 ; 舷侧纵骨
longitudinal-flow shell side 纵流壳程
longitudinal shell-and-tube heat exchanger 纵流壳程换热器
longitudinal flow in shell side 壳程流体纵向流
spirally longitudinal shell-and-tube thermal exchanger 螺旋纵流管壳换热器
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