方向

Moreover, It's proved that if the initial point is the interior point of hypercube and steplength is confined to (0,1) when carrying out one dimension search following the direction mentioned above in order to generate next point, then any point generated by such iteration is interior point of feasible field.

在求解加辅助项模型的过程，作者找到一个很好的下降方向，并证明了只要初始点在超方体的内部选取，沿着上述的下降方向进行一维搜索时的步长限定在(0，1)范围内，那么迭代点始终保持在可行域内部。

Direct method is to select the direction of the decline and fall directly point to determine whether the region, where feasible, the commonly used method: random bound by the direction of law, complex method, and so on.

直接法是在选取下降方向和下降点时直接判断是否在可行区域内，常用的方法有：约束随机方向法、复合形法等。

The result shows that the transmission characteristic is different if the angle between the direction of wavelength encoding and the direction of array of optical fiber bundle changes.

结果表明：线阵光纤束波长编码传像的效果和特性随波长编码方向与线阵光纤束排列方向夹角的不同而不同。

Competition among four-wave mixing with two dressing fields, the six-wave mixing with one dressing field as well as the eight-wave mixing propagating along the same direction can be evoked by adjusting laser beams because these multi-wave mixing signals are induced by atomic coherence between common levels.

研究发现，通过调节激光束方向，沿同一方向出射的八波混频、双缀饰四波混频和单缀饰六波混频信号因共用能级的原子相干产生而出现竞争现象，通过控制缀饰场减弱四波混频和六波混频信号强度，可以达到增强八波混频信号的目的。

Note that the direction of motion of the clusters is roughly parallel to the direction of the filament.

请注意，星系团的运动方向大致与整个丝状物质流的运动方向相同。

Based analysis above, we chose the spatial resolution of 1°×1°in the horizontal direction and 5~30 km in depth. Using the pseudobending method to calculate the ray traveling path and residual of travel time; LSQR method to inverse, we got the final 3-D P wave velocity structure in this area.

根据上述分析，以水平方向1°×1°，垂直方向以5 km、15 km、30 km为间隔划分网格，并建立初始速度模型，采用伪弯曲射线追踪方法计算走时和射线路径，通过基于LSQR算法的反演重建了研究区域40 km以下、480 km以上的三维P波速度结构。

After finite iterations, the iteration point gets into the feasible set and the master direction is a feasible direction of descent.

有限次迭代后，迭代点进入可行集且主方向是一可行下降方向。

Looking for direction is my one and only direction,ceaseless footstep is my end-result.

寻找方向就是我唯一的方向，不停的脚步就是我的归宿。

For the purposes of this article, a force vector will be defined as an imaginary line that defines the direction of application of a force.

在本文中，力的方向将被定义为一个假想线，确定力的方向。

The clue to an explanation of motion along a straight line was simple: external force is responsible for change in velocity; the force vector has the same direction as the change.

解释直线运动的线索是非常简单的：外力产生了速度的改变，外力的矢量其方向跟速度改变的方向相同。

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。