有方向性

For the use of cables or infra-red remote control system, in the receiver's direction and distance have greater restrictions.

对于使用电缆或红外线的遥控系统来说，在接收器的方向性和距离方面都有较大的限制。

As a result, the achieved uncertainty of time measuring is±125 ps, demonstrating an accuracy improvement in magnitude of an order. The achieved precision of speed measuring is 0.1% of the scanning speed. In hardware design, the intactness of the camera's original structure has been maintained to the very extent, the facility of assembling and disassembling devices have been achieved.

在设计制作中采用了单色性和方向性好的激光作为光源，选取了高速响应和有高速处理能力的一系列器件、芯片，因此时间测量的精度达到了±125 ps，比以往的测试方法提高了1个数量级以上，速度测量精度达到扫描速度的0.1%。

Considering that fz6-related genes are consered between species, the same self-organizing system likely "applies to all mammals, and also to bird feathers and fish and reptile scale orientation," Nathans says.

考虑到fz6相关基因在种群中有保留，Nathans说，同样的自体组织系统可能"适用于所有的哺乳动物，也包括鸟类羽毛，鱼雷和爬行类鳞片的方向性。"

RESULTS: The positive staining cells mostly included ependymal cells of myelocoele, glial cells, motor neurons, and epithelial cells of spinal pia mater. The staining was mainly located on the cell membrane. Most importantly, it displayed certain directivity in the glial cells, mainly at the membrane side contacting with capillary endothelial cells.

结果： 免疫组织化学染色结果显示阳性着色细胞包括有胶质细胞、中央管室管膜上皮细胞、脊髓前角运动神经元、软脊膜上皮细胞，着色部位主要在细胞膜，其中在胶质细胞表现出一定的方向性，主要分布在与毛细血管内皮细胞接触的一侧。

Then the new methods are applied to extract slub, which is the directional feature of fabric images. Instead of the past extracting method, in which the slub is regarded as fabric defects, slub is regarded as a texture feature. A more suitable Gabor filter is designed.

然后将新方法应用到织物图像的方向性特征—竹节纱的提取上，本文的方法不同于以往将竹节看作织物图像疵点的提取方法，而是将竹节看作一类纹理特征，设计更具有针对性的Gabor滤波器。

The algorithm handles the objective function and constraints separately, and adopts both directional and random search mechanism. It can avoid falling into local optimal point, which may appear in previous bionics random algorithms due to uncertainness of some parameters and/or without guiding search direction.

该算法将目标函数与约束条件分开处理，采用兼具方向性和随机性的搜索机制，避免了已有仿生类算法由于一些参数难以确定和无引导性的搜索方向而陷入局部最优的问题。

Beamlet sources have strong local and directional character and can easily accomplish local illumination and migration. Besides, they provide better migration results than conventional migration methods.

小波束源有很强的局部性和方向性，它可以很容易的实现局部照明和偏移，除此之外，它的偏移效果也要好于常规的偏移方法。

The main conclusions are: Mexican hat wavelet is anisotropic one, and it could detect pointlike singularities very efficiently. Morlet and Cauchy wavelet could be used to detect specific directions, and Cauchy wavelet has better direction selectivity than Morlet one. And it has been used to separate the wave field of Ricker. Its results are basically accurate and computation is more efficient.

主要结论有：Mexcian帽小波是各向同性的，主要用来检测点状信号分量，Morlet小波和Cauchy小波主要用来检测方向信号分量，并且Cauchy小波比Morlet小波的方向性要好，检测结果的分辨率要高；利用二维连续小波反变换，以合成的Ricker子波为模拟信号为例进行波场分离，提高了运算效率，实验结果基本上比较准确，还需要实际地震信号的进一步验证。

Quite apparent is the fact that most laser beams are exceedingly directional, or if you will, highly collimated

非常明显的是，大多数激光光束有很好的方向性，或者说，是高度准确的。

Considering that fz6-related genes are consered between species, the same self-organizing system likely "applies to all mammals, and also to bird feathers and fish and reptile scale orientation," Nathans says.

考虑到fz6相关基因在种群中有保留，Nathans说，同样的自体组织系统可能&适用于所有的哺乳动物，也包括鸟类羽毛，鱼雷和爬行类鳞片的方向性。&

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。