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- principal normal plane 主法平面
- 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。
- This category has to do a good job for you, it is but a normal plane, pushdown several styles and faster to use it? 你需要圆形的按钮吗？这个类已经替你做好了，它可是有正常、平面、下推几种风格的，快使用它吧-you need circular button?
- So all of the plane problems in description geometry can be solved through the normal plane system with the normal footmark, the intersection point of normal and maximum inclination line. 通过法线的法足、法迹和最大斜度线的线迹，使画法几何中有关平面的问题在法线平面体系中均可得到解决。
- Principal Normal Surfaces of Curves 曲线的主法线曲面
- spherical indicatrix of principal normal 吱线球面指标
- Working cutting edge normal plane 切削刃工作法向剖面
- Tangent and normal plane of space curve 切线方程:法平面方程
- 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。
- The computer has a normal qwerty keyboard. 这台计算机有标准的英文键盘。
- Our principal problem is lack of time. 我们的主要问题就是缺少时间。
- 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。
- The plane deviated from its normal flight path. 飞机偏离了正常航线。
- John informed the principal against Paul. 约翰向校长告发了保罗。
- The situation has returned to normal in the city. 这座城市的局势已恢复正常。
- The central or principal vein of a leaf. 中脉中心的或主要的叶脉
