dee line是什么意思

网络释义

1)dee line,D形盒馈线2)D shape tube,D形管3)D type graphite,D形石墨4)D-Section Bolt,D形螺栓5)D shaped cavity,D形腔6)D-shaped larvae,D形幼虫

Strength Analysis of the Seal Structure of the New Type Quick-Opening D-Section Bolt and n-Shape Ring;

新型快拆式D形螺栓n形环密封结构强度分析