segmental support
弓形桁架 cambered truss ; [建] framed arch ; segmental truss
弓形框架 upswept frame
贝式弓形屋架 belfast roof truss
弓形屋架 bowstring truss
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是由滑刀、具有开口槽及限位销钉的滑刀架、和含有弓形弹簧及弹簧架的弹簧仓组成。
The utility model consists of a slide knife, a slide knife bracket provided with an opening groove and a limit pin, and a spring storehouse provided with a semielliptic spring and a spring bracket.
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