- arch without articulation无铰拱;
- arch truss拱形桁架;
- arch thrust拱推力;拱应力;
- arch structure拱形结构，拱结构;
- arch stone拱石;
- arch of triumph凯旋门;
- arch gravity dam拱形重力坝;
- arch falsework楔形砖;
- arch door拱门;
- arch dam拱坝;
- arch covering拱形屋面;
- arch camber起拱;拱势;
- arch buttress拱壁;
- arch bridge拱桥;
- arch block拱块;
- arch bar（车轴的）拱板，拱杆，弓杆;
- arch abutment拱端，拱台;
- center stage[电影]中央舞台;
- center pole中心支柱;
- center on以…为中心;重点在于…，主要与…有关;
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