| [/ˏkrɔs ˈsekʃn; US ˏkrɔːs; ˋkrɔsˋsɛkʃən/] n 用法:
1 (picture of the) surface formed by cutting through sth, esp at right angles 截面（图）; 断面（图）; 剖面（图）:
examining a cross-section of the kidney under the microscope 在显微镜下检查肾的切面 *
The girder is square in cross-section. 这个大梁的截面是方形的. 用法:
2 typical or representative sample 典型; 样品:
a cross-section of the electors, population, etc 选民、 全体居民等中的一群具有代表性的人物 *
a broad cross-section of opinion 具有广泛代表性的看法. |