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- An expression is derived for the conductance of an electrical contact including the effects of thin films, material properties, principal radii of curvatures and principal directions of axes. 本研究先推导粗糙表面覆盖薄膜之总电导表示式，包含覆盖膜、材料性质、粗糙峰主曲率半径及主轴方向，再应用此式分析粗糙峰金属-膜-金属之接触。
- We can compute the circular area with radius. 我们能用半径计算出圆的面积。
- My wages are the principal source of my income. 薪金是我收入的主要来源。
- The principal shareholder ask for a meeting. 主要股东们要求召开会议。
- The agent spoke on behalf of his principal. 代理人代表他的委托人说话。
- Keys are available on application to the principal. 向校长申请就可得到钥匙。
- She's been downgraded (from principal) to deputy. 她已(从校长)降为副校长。
- Our principal problem is lack of time. 我们的主要问题就是缺少时间。
- Moving or directed along a radius. 沿着或向着半径移动的
- She drank in every word of the principal's lecture. 她全神贯注地听校长演讲的字字句句。
- John informed the principal against Paul. 约翰向校长告发了保罗。
- The central or principal vein of a leaf. 中脉中心的或主要的叶脉
- The principal discouraged unexcused absences. 校长不准无故缺课。
- The police searched all the woods within a six-mile radius. 警察搜索了在周围六英里以内的树林各处。
- Rubber is the country's principal export. 橡胶制品是该国主要的出口产品。
- The principal has a very tight schedule. 校长的日程表排得满满的。
- Our school gave a reception to our new principal. 我们学校为新校长举行了欢迎会。
- There are three lakes within a radius of five miles. 周围五英里之内有三个湖泊。
- The given radius being 4 ft., find the circumference. 已知半径为四英尺,求周长。
- The principal knew all the students individually. 校长认识每个学生。
