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In general, the distribution of stable carbon and nitrogen isotopes revealed the mixing inputs of terrigenous and marine organic matter controlled the stable carbon and nitrogen isotope compositions in sedimentary organic matter. However, a series of physical, chemical and biogeochemical processes occurring in the local environments had also the significant influence on the stable carbon and nitrogen isotope compositions in organic matter.

研究区域内，稳定碳、氮同位素的地区分布和季节变化特征揭示，有机质中稳定碳、氮同位素组成不仅受陆源和海源有机质输入量之间消长变化的影响，同时一系列的生物地球化学过程、人为有机质的输入和沉积物粒度与叶绿素含量对碳、氮同位素组成均存在一定的改造作用。

Usually these are found in the subcortical and central white matter and cortical gray-white junction of both cerebral hemispheres , cerebellum , brainstem , and spinal cord [11] , but periventricular white matter and gray matter of the cortex , thalami and basal ganglia may also be involved.

通常，这些被发现的皮质和中央白质和皮质灰色白色双方交界处的大脑半球，小脑，脑干和脊髓[ 11 ] ，但周围白质和灰质的皮质，丘脑和基底节也可参与。

Bidentis were studied by adopting indoor bioassay. The results showed that the volatile matter of F. bidentis had not allelopathy to four receptor plants. The eluviated matter inhibited seedling growth of cotton obviously, the inhibition ratio of root and stem were 6.29% and 10.42% respectively. The aqueous extract of litterfall and root exudates had different inhibition to four receptor plants, The synthesis effectof all treatments was significantly greater than eluviated matter treatment except for B3 of the aqueous extract of root exudates, such as the synthesis effect of all treatments (A1, A2, A3, B1, B2, B3 and eluviation) were 44.74, 29.37, 14.5, 31.54, 16.52, 3.55, 1.48 respectively.

结果显示：黄顶菊自然挥发物对受体植物不表现化感作用；黄顶菊淋溶物对棉花幼苗生长表现出明显的抑制作用，对棉花幼苗高度和根长的抑制率分别为6.29%和10.42%；黄顶菊枯落物浸提液和根系分泌物浸提液对4种受体植物均表现出不同程度的抑制作用，除了黄顶菊根系分泌物浸提液 B3处理外，其它处理的综合效应均显著大于淋溶物处理，如黄顶菊枯落物浸提液（ A1、 A2、 A3）、根系分泌物浸提液（ B1、 B2、 B3）以及淋溶物等各处理对受体植物的综合效应分别为44.74、29.37、14.5、31.54、16.52、3.55、1.48。

When they come to explaining matter, they either say, like Berkeley, that matter is really nothing but a collection of ideas, or they say, like Leibniz (1646-1716), that what appears as matter is really a collection of more or less rudimentary minds.

当他们要解释物质的时候，要么他们就像贝克莱那样说，物质其实只不过是一束观念；要么就像莱布尼兹（1646－1716）那样说，表现成其为物质的一切事物，其实或多或少只是原始心灵的聚集而已。

In the matter of teaching system, optimizing the structure of experiment courses, establishing the sectional form of experiment teaching mode. in the matter of teaching method, pay attention to unleash the leading role of students from effect of preparing, skill of experiment, multi-media technology, semi-open or open style of experiments. in the matter of examination section, establishing the pluralizing examination methods.

在教学体系方面：优化实验课程结构，建立分段式实验教学模式；在教学方法方面：从预习效果、实验技能、现代化教学元素、半开放式和开放式实验四个方面注重学生主体作用的发挥；在实验考核方面：建立多元化考核方法。

The result shows: in 0~360 kg/hm^2 fertilizer can improve the plant height, dry matter accumulation of maize, nitrogen accumulation, root vigor, leaf nitrate reeducates activity, chlorophyll content and yield, meanwhile the leaves' nitrate reeducates activity, dry matter accumulation and the final output of wheat, root activity and other indicators were significantly correlated; Cultivating under the same conditions and dropping the fertilizer amount from 360 kg/hm^2 to 315 kg/hm^2, the dry matter accumulation will be increased, the roots vigor and leaf nitrate reeducates activity will be strengthened, but the yield are not obviously different in the same treatment.

结果表明：在0~360kg/hm^2的施肥范围内，肥料能显著增加玉米植株的株高、干物质积累盆、叶绿素含量和籽粒产量，提高根系活力、叶片硝酸还原酶活性；同时硝酸还原酶活性、干物质积累量、根系活力和叶绿素含量等指标与玉米最终产量呈显著正相关；在相同的栽培条件下，将施肥量从360kg/hm^2降至315kg/hm^2，植株的于物质积累量增加、根系活力、叶片硝酸还原酶活性增强，但处理间籽粒产量无显著差异。

Results When compared with those of young rats, the total volume of white matter and the total length of myelinated fibers in the white matter of aged rats were decreased by 24.1% and 41%, respectively. In the white matter of aged rats, the volume density of myelinated fibers, the volume density of myelin sheathes and the mean diameter of myelinated fibers were increased by 30%, 23.9% and 31%, respectively, when compared with those of young rats.

结果 老年组大鼠大脑白质总体积，有髓神经纤维总长度分别下降了24.1％和41％；老年组大鼠有髓神经纤维体积密度、髓鞘体积密度和纤维直径分别增加了30％、23.9％和31％，具有统计学意义。

Soil CEC and organic matter content were higher in forest-land, grassland and farmland than in orchard land, and soil pH was lower in forestland than in other three land use types. Soil pH, CEC and organic matter content were higher in plateau land and sloping land than in gully bottom and terrace land. Soil CEC and organic matter content were higher in dark loessial soil and rebified soil, while soil pH was higher in yellow loessial soil.

不同土地利用方式下，土壤有机质和CEC以林地、草地和农田较高，果园较低；pH则以林地较低，其他利用方式较高；不同地形条件下，3种土壤性质均呈塬面和坡地大于沟道和梯田的趋势；不同类型土壤中，有机质和CEC以黑沪土和红土较高，pH则以黄绵土较高。

The third is helpful for people to analyze and explore the unknown things in our universe, such as the evolvement of early universe, the inner structure of neutron stars, the non-conservation of baryons and unclear matter in the university, and so on. QGP is an exploring matter,which comes from hadron matters through deconfinement phase transition. If the existence of QGP is confirmed, not only people will know a new matter, but also a great improvement in the basic physical conception will come.

这可简单概括为：其一是探索在夸克层次上的一种新的物质形态；其二表现在通过对系统集体行为研究进一步检验在夸克层次上的动力学和发展相应的热力学；其三是有助于人们对宇宙中一些未解之谜的分析和研究，如早期宇宙的演化，中子星内部结构，宇宙中的重子数不守恒和暗物质等问题。

Research of cantilever screen grating diagrid and matter coactions way imitation;2. Has studied vibration of a single grating diagrid firstly,analyzed the montion of matter on screen,lastly analyzed and simulated the track of matter on it by using Matlab.

针对一种新研制成功的振动筛—梯流棒条筛，首先研究了振动筛棒条的振动规律，之后主要分析了其上物料的运动，并以Matlab语言为基础分析和仿真了物料运动的轨迹。

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。