查询词典 clusters

Classical partitional approach such as K-means also have the problem that have to predefine the number of clusters before training. And in most case, the number could not to be known in advance.

这一方法有可能导致收敛至局部最小；另外分割聚类方法一般必须事先确定类的数目，这在实际应用中也是难以事先获知的。

Asian tree having clusters of usually white blossoms and edible peachlike fruit .

亚洲树种，串状丛生白花，桃形果实，可食。

Female flowers pedicellate, freely borne or in loose clusters at extremities of peduncles; pedicels often fleshy but not swollen.

雌花有花梗，单生或生于松散的花序梗的末端簇中；花梗经常肉质但不是膨胀。

Any of numerous plants of the genus Pedicularis, having clusters of irregular, variously colored flowers.

罗丝草一种马先蒿属植物，有一簇簇不规则，不同颜色的花

Flowers solitary or in pedunculate clusters; peduncles or pedicels 1-2 cm

在有花序梗的簇生里的花单生或；花序梗或花梗1-2厘米 19

Male flowers in clusters or forming pedunculate capitula.

在有花序梗头状形成的簇生或里的雄花。

They are most abundant in quartz of pegmatitic leucosomes and granitic rocks, and represent the fluid appearing in their cooling stage. The DL(H2O) of such fluid is 0.93～0.96g/cm3 corresponding to P≈0.6GPa which is compatible with condition when the rapid decompression in this region was ended. 3 CO2-H2O two or three phases inclusions. They are the most widespread, and more frequently in clusters and in intragranular tails in quartz. The relative content of CO2+CH4 and H2O is considerably variable. They are also characterized with lower density (0.6～0.8g/cm3) and low pressure about 0.3～0.4GPa, and may be originated by mixture of carbonic liquid from breaking of most inclusions of peak stage and aqueous liquid of magmatic source. After entrapment, the further decrease of temperature to lower than 330℃ made such fluid separated to two or three phases.

主要集中于伟晶质脉体和花岗岩中，是这期岩浆冷凝过程析出的流体相当时就被封闭所成，密度为0.93～0.96g/cm3，相应压力约0.6GPa，这与峰期后迅速减压过程结束时的条件相符。3CO2-H2O两相和多相包体，分布最广，成簇状和拖尾状包体群，碳质和H2O相对含量很不均匀，整体密度相对最低，一般为0.6～0.8g/cm3，相应压力为0.3～0.4GPa，它们可能是大幅度减压过程中第一类包体大量爆裂析出的碳质流体与第二类H2O溶液流体在各处以不同比例混溶所成，它们被封闭后在降温至330℃以下时分裂成两相或三相包体。

A large number of the positive Fas-cells, in spleen, distributed in red pulp and the surrounding area of periarterial lymphatic sheath scatteredly or in clusters.

大量Fas表达阳性细胞分布于红髓和动脉周围淋巴鞘的周围；阳性细胞簇团状或散在分布。

Based on the genetic distance of 26% by SSR data, the cluster analysis with un-weighted pair-group method using arithmetic averages produced 2 major clusters: cluster Ⅰ of higher degrees of genetic differentiation and Cluster Ⅱ of lower degrees of genetic differentiation relatively, which are composed of 30 cultivars, and another cluster of much higher degrees of genetic differentiation, which is only composed of the cultivars of FHIA 25 and Pisang Jari Buaya.

依据26%的遗传距离，除了FHIA25和Pisang Jari Buaya单独化成1组外，其它30个品种可以分为2组：品种间遗传差异相对较高的组Ⅰ和品种间遗传差异相对较低的组Ⅱ。

After plasmodia infect a blood cell, they send out clusters of sticky proteins to the cell surface, enabling them to attach to blood vessels and escape destruction by the host's spleen while they replicate.

疟原虫感染血细胞后，它们会向细胞表面释放出一系列粘性蛋白质，使其能够附着在血管上，以便逃避它们复制时宿主脾脏对它们的破坏。

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。