切线的

L The tangent problem. Given a function y = f and a point P on the graph of f , this problem asks for the equation of the line that locally shares with the graph just the point P .

切线问题：给定一个函数f和函数图形y=f上的一点P，这个问题是要求一条和y=f"局部分享恰于点P"的直线的方程式。

In order to introduce tangential acceleration into the control of torpedo trajectory,equations with variable thrust have to be established.

目前的鱼雷运动方程是建立在恒推力基础上的，为了将切线加速度引入弹道控制，建立变推力方程是必要的。

By means of the fractions of the equation of the non一ideal constrained motion of the particle along the plane curve on the tangential direction and normal direction,the motion speed expression of the particle under this condition is derived,the constrained counter force is further gained,thus some non一ideal constraint problems are solved from the given angle.

通过质点沿平面曲线的非理想约束运动方程在切线和法线方向上的分式，导出质点这一条件下的运动速度表示式，并进一步求出其约束反力，从一定角度解决一些非理想约束问

The experiments show that our method can avoid the tangential drift and preserve the feature of the mesh.

实验表明该算法可以有效的避免了切线方向的漂移，并且能够有效的保持网格特征。

Theorem 3: the gradient of any point in the locus of foot point of the perpendicular line and the tangent line of the cylindrical spiral is , namely one-order tensor field.

定理3 由坐标原点至圆柱螺线的切线所引垂线的垂足轨迹上任一点的梯度为，即为一个一阶张量场。

Hoek [13] suggested that the cohesive strength determined by fitting a tangent to the curvilinear Mohr envelope is an upper bound value and may give optimistic results in stability calculations.

Hoek认为由Mohr包络线的切线得到的黏聚力是一个上限值，对于边坡稳定可能会给出一个偏于安全的结果。

The presence of hyperpneumatization of the frontal sinus concerns with the angle from the line between the junctional point and attachment point of cribriform plate to horizontal line, with the more large angle, the more high rate of frontal gasification, and the more deep olfactory fossa.

额窦高度气化与眶板垂直切线与前颅底交点，这点与中鼻甲骨质筛板附着点的连线与水平线夹角的大小有关，这个夹角越大额窦高度气化发生的几率越大、同时嗅凹也较深。

A mouth outline feature extraction based on Bayesian Tangent Shape Model and a lip-reading system based on Dynamic Bayesian Network is proposed for a talking head in this paper.

为实现文本/语音驱动的说话人头部动画，本文提出基于贝叶斯切线形状模型的口形轮廓特征提取方法和基于动态贝叶斯网络（Dynamic Bayesian Network， DBN）模型的唇读系统。

CONSTITUTION: The button-sewing machine comprises: a fixing means for fixing a button and an article being sewn; a moving means for moving the fixing means to stitch 缝制 the button to the article being sewn with seams of a specified sewing pattern; a fixed blade; a moving blade for drawing a thread and then moving to cut the thread by the cooperation with the fixed blade; and a button, wherein the machine has a control means for controlling a fabric transferring means to move the button to a preset position before cutting the thread.

原理：钉扣机包括，一个固定部件，用来固定按钮和一个缝纫零件；一个移动零件，用来移动固定部件来把纽扣缝制在部件上，绘上一个特别的缝纫图案；一个固定刀片；一个移动刀片用拖出线，然后通过与固定刀片的联合切断线；最后一个按纽，就是机器的一个控制部件，用来控制一个纤维转变方法用来移动按纽，在切线之前，提前找好位置。

Lock Stitch - 1 Commonly referred to as a lock-down or tack-down stitch, a lock stitch is formed by three or four consecutive stitches of at least a 1mm movement.

See Tie in Stitch （也叫锁定针或粗缝针，一个锁针由三个或者四个连续针进行最短距离为1毫米移动所形成的。他应该在挨针、密针，以及其他（如有跳针跟随在转色、机器或者手工切线后面）的最后面打，或者是在花样打完的时候打。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。