方向

And according to the directions, the Bandelet blocks were classified into two sorts: the Bandelet blocks with geometrical directions and the Bandelet blocks without geometrical directions, and the different characteristics of the two sorts of Bandelet blocks were analyzed in order to distinguish the noise and signal, and the weak contrast features and the strong contrast features.

根据图像增强方向将Bandelet块分为两类：有几何方向的Bandelet块和无几何方向的Bandelet块，并分析了这两类Bandelet块系数的不同特征，从而区分出噪声和信号、清晰边缘和脆弱边缘。

Finally,a solution combustion synthesis of pure and indium-incorporated ZnO powder was performed by using metal nitrates as oxidizer agents and carbohydrazide as fuel.

在中性溶胶溶液中，所制备的ZnO沿着[0001]方向生长；而在在酸性溶胶液中，由于H~+与晶体表面的OH~-配合体反应，抑制了沿[0001]方向的生长，使得水平方向的生长更容易。

Then convolve the fingerprint image with the matched filter for removing noisy and increasing the contrast of ridges and valleys.

论文作者根据指纹图像中局部纹线方向和宽度选择相适应的滤波器进行滤波，并采用了一种用于指纹图像增强的匹配滤波方法，以局部纹线方向和局部纹线频率来构造一组与纹线方向和宽度相关的滤波器，最后达到去除噪声和增强峰谷对比度的目的。

The flow rate has a significant effect on the sensor placed countercurrently and has little effect on the sensor placed concurrently.So the sensor should be placed concurrently in application to decrease the effect of flow rate.

流速对逆水流方向传感器的影响大于顺水流方向，因此实际应用时传感器应顺水流方向放置，以减小流速的影响。

On a conveying bridge overlapping the molding path, two conveying carriages are provided, which are displaceable in directions opposite to each other and at right angles to the direction of production and to each of which is attached a conveying arm directed downwards and having a holding device for a mold segment half.

在与模塑路径（2）重叠的传送桥（34）上设置了可以相对于彼此在相反的方向上和在垂直于生产方向的方向上移动的两个传送滑轮架（44，45），在每个传送滑轮架（44，45）上装有一个传送臂（53），此臂指向朝下并有对于一个模具半段（4，5）的一个固定装置（54）。

It has been suggested that the architecture of the lower lumbar vertebrae and sacrum (e.g., inadequate separation between the inferior articular process of L4 and the superior articular process of L5, a wedged-shape interfacet region of L4, a more frontally oriented lumbar facet, and a wider sacrum), pelvic orientation and lumbosacral parameters (e.g., pelvic incidence, sacral table angle) may play a role in the development of spondylolysis.

低位椎体和骶骨的结构（如L4下关节突与L5上关节突间隔不足，L4下关节突成楔形，腰椎小关节方向过分偏额面方向，骶骨过宽），骨盆方向和腰骶段的参数（如骨盆影响和骶骨水平角）可能在脊柱滑脱的发展中扮演重要角色。

In this paper,the condition that gas flow through wood in the pattern of linear flux wasdetermined from the theories of thermodynamics and fluid mechanics.The expression of flow-resistor of tracheids is reduced with the continuity equation and the equation of motion indifferential form.The flow-resistor network is constructed by means of the theory ofpercolation.The equivalent flow-resistor was evaluated by utilizing the real spacerenormalization approach.

本文根据针叶材管胞的解剖结构，运用孔隙介质流体力学的理论，导出了管胞关于气体渗透流阻的数学表达式；继而根据管胞纹孔在三个纹理方向上的连接特性，利用管胞流阻建立了一个描述针叶材三个纹理方向气体渗透性的三维流阻网络；然后运用实空间重整化变换的方法，求解试件流阻网络三个纹理方向的等效流阻，并由此计算试件相应的气体渗透系数；最后用我国南方常见的人工林马尾松木材试件进行渗透系数实际测量，与理论计算结果进行对比分析，以验证三维流阻网络及其理论的准确性。

With horizontal shear component of intercolumn forces ignored, four equilibrium equations were formed, i.e., force equilibriums along the vertical direction, the sliding direction, Y axis direction, and moment equilibrium around Y axis. The equilibrium equations contained the actions of underground water, earthquake and supporting forces.

在忽略条柱间作用力的水平剪切分量的基础上，建立铅直方向、滑动方向、垂直滑动方向的力平衡以及绕Y轴的力矩平衡共4个方程，平衡方程中纳入地下水、地震、支护力作用。

Test specimens in the nodal zone and the internodal zone are made from both carbonized bamboo and normal bamboo. Experiments are arranged in groups according to the three different cutting directions: 90-0,0-90,90-90(in each direction, experiments are further developed in two different grain directions: tangential and radial direction).

选用炭化和本色两种竹材并分别制作了专门的竹节部和节间材试件，对竹材的纵向、横向及端向(每个方向又分为径向和弦向两个不同切削方向)等三个主要切削方向的切削过程分组加以研究。

Three important conclusions are achieved: 1 By analyzing the demand for spatial resolution of recording medium in different digital holographic recording setups, it shows that lensless Fourier transform holography can relax the requirement of spatial resolution and use the full spatial bandwidth of the CCD sensor. 2 Because of the differences of spatial resolution of image planes in different directions, reconstructed images can be relatively extended in the direction of high spatial resolution and reduced in the direction of the low one. 3 Lateral resolution of the reconstructed images is mainly determined by the highest spatial frequency of digital holograms recorded by CCD, and increases with the larger CCD size, the higher spatial resolution of the CCD sensor, and the shorter recording distance.

通过分析几种不同数字全息记录光路对记录介质空间分辨率的要求表明，无透镜傅里叶变换全息光路对CCD的空间分辨率要求最低，最能充分利用CCD的带宽；再现像面的空间分辨率在不同方向上的不一致，会导致再现像在空间分辨率高的方向上相对展宽，而在空间分辨率低的方向上相对压缩；再现像的横向分辨率主要由CCD所能记录的物体的最高空间频率决定，它随CCD的尺寸和空间分辨率的提高及记录距离D的减小而提高。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。