... square opening single end box wrench ==> 方口单头套筒扳手 square orifice ==> 方形口 square parachute ==> 方形伞 ...
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square edged orifice 方缘孔口 ; 方孔
square-edged orifice 直角铣孔流量计孔板 ; [流] 方缘孔口
square-edged orifice plate 直角边缘孔板
Orifice square 方孔口
Orifice square edged 方缘孔口
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