[纺织 造纸] 运转-表面蒙皮 covering surface: 覆盖面; 覆盖曲面running surface: 板面; 波状表面; 工作表面; 跑合面finite covering surface: 有限复盖面homology covering surface: 同调的覆盖面racket surface covering: 拍面覆盖物下载手机词典可随时随地查词查翻译