downward direction是什么意思

网络释义

用法例句

An Algorithm for Finding Global Minimun with Descent Direction;

带下降方向搜索的总极值方法

For a given value of the parameter, the method searches for an optimum point of the approximate function in a descent direction.

该方法对给定的参数在下降方向寻找逼近函数的最优点 。

In this paper, the author applies affine reduced operation to the model based secant method and gives a new method to look for the descent direction for solving unconstrained minimization problem.

把仿射约化变换应用于基于模型的割线法中，给出了一种新的求解无约束极小化问题的下降方向算法。

Secondly,a conclusion of decrease direction cone is also proved.

文章先是证明了一个函数的凸性,然后提出了下降方向锥的一个凸性和一种新的表达形式,并且用了新的方法去证明。

A Derivative-free Algorithm Based on Approximate Descent Direction;

一个基于近似下降方向的免梯度算法

Search Direction of Descent Direction in Model-Based Affine Reduced Secant Method

基于模型的仿射约化割线法中下降方向的求解方法

The land falls off here towards the river.

这里的地势朝河的方向陡降下去。

A downward movement.

下降，落下向下的运动

Bottom-up parsing implementation with recursive descendent method

用递归下降方法实现自底向上的语法分析

The surface projection of the appendix root draws down gradually following the descent of caecum.

阑尾根部的体表投影随盲肠下降而逐渐向下方移位。

The sun was-ging towards the horizon.

太阳向地平线下降。

critical rate of fall of commutating current

换向电流临界下降率

Share prices have been trending down.

股票价格一直趋向下降。

A sudden drop from a relatively erect to a less erect position.

突然俯身低下从垂直方向上相对高的位置降到低的位置

Enthusiasm is a spiral, turning inward or outward, rising or falling.

热忱就像一个螺旋，它会向内转或向外转，也会上升或下降，使你的热忱循着正确的方向发展。

Plunging movement, esp a steep fall

（向前或向下的）冲，投，落；（尤指）骤降，猛跌

They sediment toward the bottom of the centrifuge tube at a velocity.

它们以某一速度向管底方向沉降。

Lower inlet style means the dusty flow inlet is situated on the lower part of the bag-house,and the direction of flow is opposite to that of dust precipitastion.

下进风是指含尘气体流入口位于袋室下部，气流与粉尘沉降方向相反。

We take the downward direction as positive.

我取向下的方向为正。

We're ging to begin the descent for Fuji Mountain.

我们准备开始向富士山下降了。

The lift went downward from the sixth to the first floor.

电梯从七楼向下降到二楼。

We are going to begin the descent for Honolulu .

我们准备开始向檀香山下降了。