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Researches on face recognition, which is a potential biometric identification technology, have great theoretical and practical significance.

人脸识别是一项极具发展潜力的生物特征识别技术，人脸识别技术研究具有十分重要的理论和实际意义。

The surface of desert biological soil crust formation mechanism, and their impact on the environment, biota, from another point of view of ecosystem stability and maintenance, but also has important theoretical and practical significance.

探讨荒漠地表生物结皮形成机制，及其对环境生物群的影响，从另一角度研究生态系统的稳定与维持，而且具有重要理论与实践意义。

It has theoretic significance and practical value to synthesize dimenthoxy dicarboxylate biphenyl which is not only a very important medical intermediate but also a new kind of medicament.

联苯双酯是一种重要的医药中间体，也是一种新型的药物。

The birdbath like flower is very practical also, bottom already glaze, can install conveniently go up in the stage.

像花朵一样的水盆也很实用，底部已上釉，可方便地安装在台上。

Most Birdy owners who fly choose one of the fabric bags to protect the folded bike: much more practical if a little more nerve-wracking.

大部分的Birdy车主对这个伤脑筋的问题，很实际的选择了软式携车袋来保护他们的爱车。

Considering the factors such as randomness of natural lightning locus and the coexistence of primary and secondary leaders, it is necessary to lead in the concept of dynamic lightning protection shielding angle. It is suggested that the angular bisector of practical protective angle formed by ground wire or earth pin in UHVAC transmission line and conductor should be aligned with the direction of lightning leader as well as the ratio of vertical span to horizontal span and the impact of wind speed should be considered.

考虑自然闪电轨迹的随机性和雷电主先导与次先导并存现象等因素，有必要引入动态防雷保护角概念，建议特高压交流线路中地线对导线的实际保护角形成的角平分线应与雷电先导的来向一致，并应计及垂直档距和水平档距的比值和风速的影响。

This method had certain practical value in the separation and enrichment of trace bismuth.

该方法在微量铋的分离和富集中有一定的实用价值。

The performance evaluation includes number of arithmetic operations, bit width of floating point operations, accuracy in image PSNR, and time complexity for comparison with state-of-the-art interpolation algorithms. We find that the HPMI outperforms all the other algorithms in efficiency, accuracy, and hardware costs and thus HPMI is much practical way in modern applications.

文中所探讨效能指标将以使用四则运算所使用的个数、浮点数所使用的位元数、精确度及运算复杂度来做探讨和比较，经过整体的比较后，发现我们的内插法其不论在效能、速度、硬体电路成本都优於其他内插法，这些都可显示出此多维度内插法具有非常好的实用性。

Emphasis was placed on CB-polymer interaction adjustment in order to control dispersion of carbon black aggregates in polymer matrix and obtain technical data for designing and manufacturing PTC products of practical values.

本论文在中山大学材料科学研究所有关工作的基础上，着重从聚合物基PTC材料的组成和加工工艺的角度，以炭黑填充单一低密度聚乙烯为参照体系，通过调节炭黑-聚合物基体之间的界面相互作用、控制炭黑的分散程度与分布状态，进而研究炭黑填充低密度聚乙烯/乙烯-乙酸乙烯酯共混物基PTC型复合材料，力图改善上述不足，为更好地了解这类PTC材料的结构-加工-性能之间的关系，设计和制造具有实际应用价值的PTC制品提供科学依据。

In this book, Blackman catalogs 101 defenses--the most ever compiled--with descriptions practical for use in everyday assessment and treatment of psychopathology.

在这本书中，布莱克曼目录101防-这是迄今为止编制-对在日常评估和治疗精神病的实际使用说明。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。