... stiffening sleeve ==> 加固轴套 stiffening truss ==> 加劲桁架 stiffleg derrick ==> 刚腿人字起重机,刚性柱架起重机,固定支架桅杆式起重机 ...
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suspended stiffening truss 悬式加劲桁架 ; 悬索加劲衍架
stiffening truss west bank 加强桁架
three-hinged stiffening truss 三铰加劲桁架
steel stiffening truss girder 钢加劲桁梁
truss-stiffening girder 桁架加劲梁
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