切线

Find the points on the curve at which the tangent line is horizontal.

1- ++。若该曲线在某点有水平切线，求该点的坐标。 8 分

Compressing air expands in nozzle, and then enters into vortex tube in the tangent line direction.

工作时压缩气体在喷嘴内膨胀，然后以很高的速度沿切线方向进入涡流管。

The direction of the body's rotation here is inward from the tangent line, inward from the contact spot (4C).

这里身体的旋转是从这条切线上的击球点往内旋(4C)。

The derivative of a function can be interpreted either as a function whose value at x is equal to the gradient of the tangent line to the graph of y=f at x, or, alternatively, as a function that describes the instantaneous rate of change of y with respect to x at the point x.

一个函数的导数可以理解为一个函数的值无论是在x是等于切线的梯度的y图二F在x，或者，或者，作为一个函数描述瞬时速度y的变化的关于x的点x在f关于x的也可以表示为导数

Results and Conclusion\ This paper gives the concept of bilaternal angle density and coangle density of fractal sets, gives definition of tangent and tangent plane of fractal sets, and discusses its existing conditions.

结果与结论给出分形集的双侧角密度与余角密度的概念，通过它给出了分形集的切线与切平面定义，并讨论了它存在的条

Major equipment: single Waleng Ji, Bodao machine, grinding cutting machine, indentation tangent plane.

主要设备有：单层瓦楞机，薄刀机，磨切机，压痕切线机。

Here we went into the circle of the tangent ,...

下面我们就一起走进圆的切线，。。。

To achieve tangent option you will have to build the surface in parts.

为了实现切线选项，您将必须建设中的表面部分。

What is the tangent type of technical analysis?

什么是切线类技术分析方法？

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。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。