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In this paper, we discuss the 2-harmonic spacelike submanifolds in a locally symmetric and conformally flat pseudo-riemannian manifold and get two sufficient conditions under which Mn turns into a maximal submanifold,and the results in [2] are improved.

讨论局部对称共形平坦伪黎曼流形的2-调和类空子流形，得到这类子流形成为极大的二个充分条件，推广了文[2]中的结论。

Logarithmic scale can be used when the ""maximal counts are big; if it is used, all values will be ""visible on the graph.

" "对数比例可用於最大总数较大时；如果使用这种比例，所有的数值都可在图""形上看见。

These results show that:(1) the results retrieved from the Abel integral and absolute TEC inversion are consistent on the whole at higher orbits altitude (~800 km), and in good agreement with those measured by ionosondes; the results retrieved from absolute TEC inversion are in better agreement with those obtained from ionosondes than that by the Abel integral inversion at lower orbits attitude (~500 km);(2) the maximal electron density N m from absolute TEC inversion is closer to N mF2 from ionosondes than that from Abel integral inversion, and the method of the former is more rigorous and effective than that of the latter;(3) absolute TEC is more sensitive to cycle slip than Abel integral, but for the two ways significant loss of inversion precision due to cycle slip always exists.

结果表明：（1）在较高轨道高度（约800 km），Abel积分与绝对TEC方法的反演结果基本一致，都与电离层测高仪反演结果符合良好；在较低轨道高度（约500 km），绝对TEC反演精度优于Abel积分反演精度；（2）绝对TEC反演的最大电子密度 N m较Abel积分法获得的结果更接近于电离层测高获得的峰值电子密度 N mF2，绝对TEC反演法更加严密和有效；（3）周跳对绝对TEC反演结果的影响较Abel积分反演结果的影响更为敏感，但无论哪种方法，周跳对反演精度都造成严重损失。

The results indicate that the difference of maximal displacement between mixed model and rigid frame model is within 2%. In other words, the stiffness effect of main bars and diagonal bars is greater than that of secondary bars.

研究表明，刚架模型的最大综合位移与梁桁模型相差2%以内，这说明主材和料材对于塔架整体刚度贡献较大，辅助材对整体刚度贡献较少。

Similar trend was observed for feed efficiency. Broken line regression analysis of the weight gain data indicated that phosphorus requirement of juvenile malabar grouper for maximal growth was satisfied with a diet containing 0.74% phosphorus.

饲育试验结果显示，马拉巴石斑之成长率及饲料效率均随饲料磷含量的增加而增加，但在磷含量0.74%以后的各组则有下降的趋势，而由试验鱼的成长率依折线回归模式求得最适磷需求量为0.74%。

Chinatown: Mancunian Chinatown, is maximal Chinatown of United Kingdom , also is the Chinese community that area concentrates most in United Kingdom the north part.

曼彻斯特大教堂在St Ann's Square 和 Victoria Station之间，原是15世纪的建筑，但在二次世界大战时被炸弹炸毁，在维多利亚时代又重新建造，现仍保留不少原始的中世纪建筑。

Sports activity iS the best way to improve the body health.How to maximal develop the mass sports,enlarge the sports activity ground is the significant mission for all levels of government.

体育运动是增加"健康人生寿命"的最佳途径，如何最大限度发展群众体育运动、扩大体育活动场所是我国各级行政部门的重大社会发展任务。

Sports activity is the best way to improve the body health.How to maximal develop the mass sports, enlarge the sports activity ground is the significant mission for all levels of gov...

体育运动是增加"健康人生寿命"的最佳途径，如何最大限度发展群众体育运动、扩大体育活动场所是我国各级行政部门的重大社会发展任务。

Mandibular overdentures supported by magnetic attachments can be used to improve the maximal masticatory force, retention and masticator efficiency. Mandibular overdenture with 2 magnetic attachment has more value in clinic.

应用磁性附着体下颌全口覆盖义齿能有效改善覆盖义齿的咬合力、同位力和咀嚼效率；2基牙磁性附着体制作下颌全口覆盖义齿具有良好的临床应用价值。

This condition only requires finding a common positive definite matrix in each maximal overlapped-rule group.

在此基础上，提出了一个新的判定系统稳定性的充分条件，该条件仅需在每个最大交叠规则组中分别寻找各自公共的正定矩阵。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。