适用于液压缸活塞杆往复运动用密封装置，也可用于法兰端盖的静密封装置。
Apply to reciprocating motion of hydraulic cylinder piston rod sealed device can also be used to cover the static flange seal.
本文以实际工程中某体育馆的钢管桁架屋盖结构为研究对象，对其静动力性能进行研究。
A roof structure with steel tubular truss in one stadium is taken as a research object in this article, and some aspects of static and dynamic performance are covered.
本文以实际工程中某体育馆的钢管桁架屋盖结构为研究对象，对其静动力性能进行研究。
Review and analysis of researches on bending behavior of welded joint of steel tube truss;
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