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In modern researches on the grain-size characteristics of lake sediments, the methods of incertical dividing sediments grain-size have no rigorous mathematical theory to support. To resolve this omission, the case of pollen zonation was taken for reference. 338 samples measured by Mastersizer 2000 from DG02 core of Gahai lake in Qaidam Basin were studied. Considering the clustering results of sequential clusters did not change the sequence of samples, tilia software package was used to divide the dividing sediments grain-size.

针对现阶段湖泊沉积物粒度特征研究中垂直剖面分层方法所存在的数学方法的不足，借鉴孢粉分带比较成熟的案例，应用有序聚类法中次序不变的特点，以柴达木盆地尕海湖DG02钻孔338个经激光粒度仪测试的样品为研究对象，在有序聚类的数学理论基础上，借助Tilia软件将湖泊沉积物垂直剖面进行分层。

The other 98 cases were treated with laser, radiofrequency or ligation for saphenous vein trunk.; cut, electric coagulation, transfixation for vein clusters as additional methods.

对于伴有交通支功能不全的患者，术中结扎或切断交通支，对于严重深静脉瓣功能不全的患者，同时处理深静脉瓣。

The other 98 cases were treated with laser, radiofrequency or ligation for saphenous vein trunk.; cut, electric coagulation, transfixation for vein clusters as additional methods.Perforators were also cutted and ligated as well.

对于伴有交通支功能不全的患者，术中结扎或切断交通支，对于严重深静脉瓣功能不全的患者，同时处理深静脉瓣。

Genus of tropical herbs and woody vines having trifoliate leaves and showy flowers in axillary clusters.

长有三叶和腋生的开有艳丽的花的热带草本和木质藤蔓植物的属。

A perennial herbnative to the northern hemisphere and having trifoliate leaves and clusters of white,pink,or purplish flowers.

睡菜一种一年生草本植物，原产于北半球，有三小叶复叶和白色、粉红、紫色花束

A woodland plantof eastern North America,having fleshy rootstocks,trifoliolate leaves,and clusters of white or pinkish flowers.

三叶碎米荠一种产于北美东部的森林植物，生有肉质根茎和有三小叶的叶片，开白色或粉红色花簇

This gorgeous view also includes two foreground globular star clusters NGC 362 and 47 Tucanae.

船底座星云是年轻，极大质量恒星的家园，包括始终是一样可见的海山二星，是一颗质量比太阳大100倍的恒星。

Of the over 200 globular star clusters that orbit the center of our Milky Way Galaxy, 47 Tucanae is the second brightest globular cluster.

在环绕我们银河系中心的超过200的球状星族中，杜鹃座47的亮度位居第二，仅次于半人马座欧密伽。

Compound 1 and 2 are pure tungstosilicate cluster,the others are transition-metal tungstosilicate clusters All compound characterized by elemental analyses,IR,TG,and single-crystal X-ray diffraction..

其中，前两个化合物为纯硅钨簇，后三个化合物为含有金属的硅钨簇。所有的化合物都通过元素分析，IR，TG和单晶X-射线分析进行了表征。另外，对于化合物3、4和5，我们还对其电化学性质进行了研究。

These two clusters were closely associated with two dominant phytoplanktons, Ulothrix sp.

这两个组与两个优势浮游植物密切相关，分别在2005年的4月27号，5月27号和6月27号观察到得 Ulothrix sp。

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。