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piston seals
活塞密封
活塞与缸体之间的密封。活塞密封的密封槽开在活塞上,属于孔用密封圈。又称活塞环密封。
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Court and Private Painting Collection in Zhenguan Period
Court attendants attached to the camps
court banquet music
Court Beauties on an Outing
Court Collection of Paintings and Calligraphy on Buddhist and Taoist Themes
Court Collection of Paintings of Qing Dynasty
court conference
court dance
Courtesan Mu Suhui
Courtesan Novel
Courtesan Zhang Haohao by Du Mu
court gentleman
Courtillot Vincent
Court Jew
court ladies preparing newly woven silk
Court Ladies Wielding Fans
court mediation
Court of Arbitration for Sports
Court of Colonial Affairs
Court of Justice of the European Union
Court of Palace Attendants
Court of State Ceremonial
Court of the Imperial Clan
Court of the Imperial Stud
court of the national granaries
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