稀疏

Oversecretion of the male hormone androgen can also result in thinning hair.

雄性激素分泌过多也会导致头发稀疏。

She had pale thin yellow hair she pulled back into a bun.

她把一头稀疏的浅黄色头发向后梳，挽成了个圆髻。

Developed a solving software for sparse linear equations based on optimization of ( 3). The software which run on distributed-memory multi-computer and Linux System can solve sparse matrix by simple operations.

在（3）优化技术的基础上，编制了稀疏线性方程组多分裂求解软件，该软件在分布式并行计算机平台，Linux系统下运行，能够通过简单的操作求解稀疏线性方程组。

A binary GA is used in the study on the optimization design of thinned concentric ring antenna array and find a method to improve the efficiency of the optimization design of thinned concentric ring antenna array. 3.

采用了二进制编码的遗传算法，对同心圆环天线阵列的稀疏优化设计进行了研究，通过仿真发现了提高同心圆环阵列稀疏优化设计效率的方法。

The effects of layouts, sparse rate and the excitation to the pattern of thinned array are analyzed in detail.

详细分析了稀疏阵的单元布局、稀疏率及单元激励对优化阵列特性的影响。

This thesis considers three applications in the area of image processing. First, the theory of sparse representation is introduced to image inpainting.

本文主要考虑稀疏表示理论在图像处理领域的三个应用。首先，本文将稀疏表示理论引入到图像修复领域中。

She had stringy hair and skinny legs.

她的长发稀疏，毫无光泽，两条腿跟竹竿似的。

The trees are sparse.

树木稀疏.

As a special type of signal, image signal itself or its semantic meaning has sparsity, which makes it possible to introduce the sparse representation technique to the area of image processing.

作为一种特殊的信号，图像信号本身及其所反映的语义在很多时候具备稀疏性这一特点，这使得稀疏表示相关的理论可以被引入到图像处理这一领域中。

He ran his hand through his thinning gray hair.

他用力捋他那愈见稀疏的灰头发.

The houses are well spaced out, each on its own plot of ground and mat of coarse grass.

房屋稀稀疏疏地坐落着，每栋都有自己的一片地和粗草坪。

This area is thinly populated.

此地人口稀疏.

In particular, for the particular application scenario of sparse arrays, the proposed algorithms directly illustrate the aperture extension capacity of the sparse array, and do not require the construction of augmented covariance matrix for DOA estimation. 3.

特别地，对于稀疏阵这一特殊应用场景，所提算法很好地阐述了稀疏阵的孔径扩展能力，且不需要构造增广协方差矩阵。

His pink scalp gleamed through his sparse hair.

他发红的头皮在稀疏的头发下泛微光.

This paper points out that we can use the density function of the Gaussian distribution to set a thinned array, extending the covariance matrix will advance the gain clearly.

提出利用高斯随机分布的密度函数设置稀疏阵列，在稀疏阵列得到的协方差矩阵经扩展后，增益有了明显的提高。

Charged with object model unknown circumstances, a linear interpolative reasoning approach under multidimensional fuzzy sparse rules and cubic spline function were applied to design the fuzzy controller for sparse rules.

在被控对象模型未知的情况下，本文将多重模糊稀疏规则库下的线性插值推理方法和样条插值函数应用到稀疏规则库下的模糊控制器的设计中。

The sparse vegetation will only feed a small population of animals.

稀疏的植物只够喂养少量的动物。

In this method, the test face image sparse representation, norm minimization algorithm using the sparse coefficients obtained solution.

该方法通过对测试人脸图像进行稀疏表示，采用l1范数最小化算法求得最稀疏的系数解。

He was a tubby little man in his fifties, with sparse hair.

他50来岁，头发稀疏，身材矮胖。

The iterative FFT algorithm is used to design the linear thinned array and the plane thinned array. Comparison with the existing research results, the simulated results confirming the great efficiency and the robustness of the new method are shown in this dissertation. 4.

运用迭代FFT算法快速优化设计了稀疏直线阵列和稀疏平面阵列，并将仿真结果与已有的文献和研究结果进行对比分析，证明了该优化方法的高效性和鲁棒性。

In machine learning, the sparsity of hypothesis functions is expected to improve the generalization performance and the test speed. Moreover the sparse signal reconstruction is a crucial problem in compressed sensing ( CS).

在机器学习中假设函数的稀疏性对检验速度和推广性能是至关重要的，而稀疏信号的重构在压缩感知中也扮演着举足轻重的作用。

In an application where the sparsity of target impulse response varies with the environment, the performance of proportionate adaptive algorithms is not guaranteed.

系数比例自适应算法主要对稀疏冲激响应有效，在目标冲激响应的稀疏程度随环境变化的应用中，算法的性能不能保证。

Eddie was a short squat fellow in his forties with thinning hair.

埃迪四十多岁，矮矮胖胖的，头发日渐稀疏。

As we drove towards the desert, the vegetation became sparse.

我们驱车前往沙漠, 沿途的草木渐渐变得稀疏.

She was a small, silent woman with pinched features and thin hair.

她是一位瘦小、沉默的女子，面容消瘦，头发稀疏。

Many slopes are rock fields with sparse vegetation.

许多山坡都是石头地，植被稀疏。

The ground was sparsely covered with grass.

地面上稀疏地覆盖草丛.

The hills were salted with a light fall of snow.

稀疏的雪花覆盖了山丘.

In the process of exhaustive synthesis of thinned arrays ( whose elements are thinned from the uniform grid), enumerating the configuration of linear thinned arrays is main task of design.

通过分析单元从规则栅格中稀疏的稀疏直线阵列的综合问题，得出枚举稀疏线阵所有可能的阵列结构是稀疏阵穷举综合法的重要任务。

Grey wispy hair straggled down to her shoulders.

稀疏的灰白头发披散在她肩头。