查询词典 directional

By the Song dynasty, people will be in the bamboo tube filled with gunpowder, the gunpowder behind the bar there is a small "directional stick", lit on fire tube Huoxiao

到了宋朝，人们将火药装填在竹筒里，火药背后扎有细小的"定向棒"，点燃火管上的火硝，引起筒里的火药迅速燃烧，产生向前的推力，使之飞向敌阵爆炸，这是世界上第一种火药火箭。

Based on a fixed grid finite element framework and universal sensitivity in all design regions, a novel bi-directional evolutionary optimization technique, ie.

本文在渐进结构优化方法的框架内建立了统一敏感度的概念，并基于固定网格有限元技术，发展了一种新的增加材料技术，提出了双向固定网格渐进结构优化方法。

The story's communication in folk shows the bi-directional between history books and popular literature more obviously.

而这一故事的民间传播更见出正史与通俗文学之间的双向互动。

Wind tunnel tests had showed that vortices produced by the forebody strake generally improved directional stability, but that certain strake shapes actually reduced stability at high angles of attack when twin tails were used.

风洞测试已显示涡产生的前体边条一般其实改善但那某些边条形状的定向稳定性双尾被使用时，请减少高迎的稳定性。

So it is necessary to research on the definition, classification, characteristics, calculation, and formal model of directional relationships.

因此得出结论：研究空间方向关系中的最基本问题，即空间方向关系的定义、性质、特点、分类、形式化描述机制、基本计算等，是研究工作的当务之急，研究新的空间方向关系形式化描述模型很有必要。

It also shows valuable live data and freeze frame data, and lets the user record and playback live data and perform bi-directional testing.

它也表明，有价值的实时数据，并冻结帧数据，并允许用户记录和回放实时数据，并履行路双向测试。

The Bi-Directional Knife Gate Valve can be used in either direction on dead-end service.

双向刀闸阀的的任何一个方向都可以用在终端应用场合。

Secondly, the wavelet coefficients provide important directional information ,the statistics of image wavelet coefficients is generalized Gaussian distribution.

其次，由于小波系数提供了重要的方向信息，图像的小波系数的统计分布具有广义高斯分布特性。

In Chapter 6, based on discretization technique an implementable algorithm for nonconvex generalized semi-infinite minimax problems is presented and, utilizing properties of generalized quasi-directional derivative, its global convergence is proven under weak conditions.

对于广义极大极小问题，本文第六章在较弱的条件下，利用广义伪方向导数的性质，用离散化的技巧给出了非凸广义半无限极大极小问题的一种可实现的全局收敛算法。

Furthermor, we consider their nondiferentiable situation, we define nonsmooth univex functions for Lipschitz functions by using Clarke generalized directional derivative and study nonsmooth multiobjective fractional programming with the new convexity. We establish generalized Karush-Kuhn-Tucker necessary and sufficient optimality condition and prove weak, strong and strict converse duality theorems for nonsmooth multiobjective fractional programming problems containing univex functions.

而且，本文利用Clarke广义方向导数针对Lipschitz函数在原来一致凸函数概念的基础上定义了不可微的一致凸函数，并利用这类新凸性，我们研究了非光滑多目标分式规划，获得了广义Karush-Kuhn-Tucher最优性条件；弱对偶定理、强对偶定理和严格逆对偶定理。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失