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- principal normal section 主正截面
- The first principal normal stresses can lead to grinding crack which generates behind the abrasive grain in the plane perpendicular to grain motion. 在磨粒后方，受第一主应力的作用，产生垂直磨削方向的磨削裂纹。
- Scanning normal section distance between two adjacent wells plays an important role in drilling orbit design and anticollision calculation between wells. 摘要邻井法面距离扫描在钻井轨道设计、井间防碰计算等问题中有重要的作用。
- Principal Normal Surfaces of Curves 曲线的主法线曲面
- The relationship of steel slippage to shear stress was obtained using a balance limit theory and a pull rod arch model.The loss in normal section bearing capacity as corrosion proceeds is predicted. 运用极限平衡理论和拉杆拱模型求出钢筋滑移量与剪应力的关系，从而建立了不同锈蚀程度的钢筋混凝土梁正截面承载力预计模型。
- spherical indicatrix of principal normal 吱线球面指标
- correction from normal section to geodesic 截面差改正
- bearing capacity of normal section 正截面承载力
- normal section load-carrying capacity 正截面承栽力
- My wages are the principal source of my income. 薪金是我收入的主要来源。
- carrying capacity of normal section 正截面承载力
- 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。
- load-carrying capacity of normal section 正截面承载力
- 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。
- The computer has a normal qwerty keyboard. 这台计算机有标准的英文键盘。
- 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。
