拱桥则是相反于悬索桥的作用，在那些悬索桥缆绳自由的提供支撑力的地方，拱桥却是从它的两端支柱固定的向上弯曲。
Arch is the opposite effect on the suspension bridge, suspension bridge cables in the freedom of those who provide support force where it is from the bridge pillars at both ends of its fixed upward.
所述终端受动器 包含自由端，其具有配置为支撑衬底的衬底支撑平面，并使衬底相对于水平面 成第一角度定位；
The end effector comprises a free end having a substrate supporting plane configured to support a substrate and positioned that substrate at a first angle relative to a horizontal plane.
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