... dog chuck; chuck with holdfast 爪卡盘 arch centering 拱模 automatic centering 自动对中; 自动对准中心 ...
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The state of steel arch centering under construction loads is analyzed by the finite element software MIDAS.
利用有限元软件MIDAS，对钢拱架施工的受力状态进行了数值分析。
The utility model discloses a safety arch centering, which is mainly used for a support for covering an agricultural film.
本实用新型公开的安全拱架，主要用于覆盖农膜时的支撑物。
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