系

9 Elected as monitor of class 1023 of English department foreign language college :daily communication with authority/Arrange the sodality with other class/daily literature, sports and social activities.

担任外国语学院英语系1023班班长①负责本班同学与系部领导、老师的日常沟通②与外系班级的联谊活动的联络与组织﹙如舞会，乒乓球，台球赛，溜冰等﹚③平日班级各项文艺、体育、社会活动的组织。

Through comprehensive analysis of many researchresults about movements of soil water and salts and data about effective root zone from literature,it was determined that the appearance of silt clay loam layer or silt clay layer with more than60cm cumulative thickness or more than 20cm continuous thickness in the 0~100cm soil horizonwas one of the most important indicator for soil series classification.It was also determined thatthe solum structure patterns of 0~150cm were another important indicator for soil seriesclassification.

通过对大量有关土壤水分、盐分运移规律的研究成果和有关土壤根系活动空间的研究资料的分析整理，确定了0~100cm土体中出现累积厚度＞60cm或连续厚度＞20cm的粉砂粘壤土层或粉砂粘土层作为土系划分的重要指标之一；并有根据地确定土表至150cm的土体构型作为土系划分的重要指标。

HPP-CFC, detected first at early somite stages (E8. 25) in mouse yolk sac and ES cells-derived EBs, is the earliest multipotential hematopoietic precursors that can be cultured in vitro in the absence of stromal cells.

小鼠胚胎干细胞体外分化形成的拟胚体细胞可在照射的免疫缺陷型SCID小鼠体内诱导较低水平的髓系和淋系细胞，但在照射的正常小鼠体内无法形成脾结节。

The sensor filtering algorithm utilized in the Reference Cartesian Coordinate System is presented for target tracking when the sensor measures range, bearing, and elevation angle in the Spherical Coordinate System.

在感测器方面，感测器在球面座标系中测机动目标之距、方位与俯仰角，转换至参考直角座标系(Reference Cartesian Coordinate System)。

Parents after household division do not belong to any stirp, neither do they constitute independentstrip.

分家后的父母不再属于任何一个家系，也不构成独立的家系。

If you go to the doctor with strep throat he can be pretty certain that it's the result of an infection with a species of Streptococcus and can therefore prescribe an appropriate antibiotic.

他们通过分析菌种的基因组序列来比较这些菌种，然后用计算机做出系谱图，再将这些系谱图与已知的参考系谱图进行匹配。

A good many mico-landblock of the early Neoproterozoic-Cambrian volcanic rock that distribute in the Tianshan orogenic belt and on its both sides, and the Carboniferous-Permian volcanic rocks that widely distribute in the Tianshan and adjacent regions are selected for subject investigating in this paper. Renewing the ocean-land format and ocean-land conversion process of Tianshan orogenic belt in the Paleozoic is the masterstroke for this paper. On the basis of detailed field investigation, many subjects, such asregional lithology、geochemistry、structural geology、volcanic sedimentology geology、sotope geochronology and synthesis analysis study of geophysics data, are adopted as instrumentality in the paper, this study lays emphasis on the formation, evolution and dynamics of early Neoproterozoic-Cambrian and Carboniferous-Permian volcanic rock in the Tianshan and its adjacent regions to find out Carboniferous-Permian volcanic rock property, eruptive sequence, time and space distribution characteristics, to resume and reconstruct evolution process of Carboniferous-Permian volcanic rock, and to explore connection of magmatism process and lithosphere stretching action of neopaleozoic ocean-land transformation in the Tianshan region.

本文选择分布于天山及其两侧的诸多微陆块上新元古代—早寒武世火山岩和天山地区广泛发育的石炭纪—早二叠世火山岩为研究对象，以恢复重建天山造山带古生代洋陆格局和洋陆转换过程为主线，在详细的野外工作基础上，综合运用区域岩石学、地球化学、构造地质学、火山沉积学、同位素地质年代学、区域地球物理资料综合分析研究等多学科手段，重点研究天山及其邻区新元代—早寒武世和石炭—二迭纪火山岩系的形成演化及其动力学，查明天山石炭纪火山岩系的性质、喷发序列、时空分布特点，恢复重建其形成演化过程，探索天山地区晚古生代洋陆转换过程中火山岩浆作用与岩石圈拉伸作用的关系。

The results indicated that the amount of female and male flower strobilus, either within a family or between families, was significantly different, and the amount of female flower strobilus was also different from that of male.

结果表明：家系间与家系内球花量差异显著。马尾松球花花量在不同冠层的分布呈现显著差异。

A clutch is a subcomponent of an engine's transmission designed to allow engagement or disengagement of the engine to whatever apparatus is being driven.

离合器是发动机转动系中的一个基础部件，无论什么样的发动机，转动系都可以接上或脱开。

Genera may be subdivided into subgenera, and also, especially in plant taxonomy, into sections, subsection, series, and subseries.

在植物分类学中，属一般可再分为亚属。同样可进一步分为组、亚组，系、亚系等。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷