较低的

Geochemical study shows that this kind of chert is characterized by lower SiO2 (～80%), highr Al2O3 (～10%) and lower V without significant negative Ce anomaly, which suggests that it formed in a continental-margin environment closely related to terrestrial material.

地球化学研究发现，该硅质岩具有较低的SiO2（80％左右）和较高的Al2O3（10％左右），微量元素中V的含量也较低，稀土元素中不出现明显的Ce负异常，表明其形成于与陆源物质关系密切的大陆边缘环境。

By the optimal condition, the cobalt content in crude cobalt hydroxide deposited from impure cobalt sulfate solution with chlorinated lime solution is higher than 43%, and the contents of the impurities, such as zinc, manganese, copper, nickel, ferrous and arsenic, are relatively low, the cobalt content in mother solution is less than 0.06g/L, the direct recovery of the cobalt is higher than 98%.

针对某硫酸钴溶液，为获取较高钴品位及较低杂质含量的粗氢氧化钴中间产品，开展漂水析钴工艺控制条件的研究，将所确定的析钴工艺控制条件用于生产，得到了含杂质较低的粗氢氧化钴中间产品。1 试液特征二次含钴物料经浸出中和及初步净化后，得到如表1所示的CoSO4 溶液。

The results were summarized as followings: the density of planktonic crustacea in middle reach was higher than that in the lower reach whereas the species abundance and community diversity index in the lower reach were higher than that in the middle reach; the planktonic crustacea communities presented high density but lower diversity in the upper part of the middle reach, lower density but high diversity in the lower part of the middle reach and estuary, and lower density and diversity in the lower reach except the estuary.

结果表明，汉江中下游江段浮游甲壳动物的密度分布呈现出中游高于下游的特征，而物种丰度和群落多样性指数则是下游高于中游；中游上段的属于密度高但多样性低的群落、中游下段和汉江口属于密度较低但多样性高的群落，下游除汉江口外属于密度和多样性均较低的群落。

Moreover, these teachers demonstrated low emotional exhaustion, low depersonalization and high personal accomplishment.

且国中教师呈现较低的的情绪耗竭、较低的无人性化、和较高的个人成就感。

In this dissertation, we optimized the thinkness of each layer of TFEL devices using the layered optimization method to obtain ZnS: Ce〓 TFEL devices. Accoding to the energy level structure of Ce〓, two criteria for distinguishing the EL of Ce〓 were found out, from which it was conduded that the TFEL of ZnS: Ce〓 comes from 5d→4f transition of Ce〓. The measurement of brightness waveform showed that the TFEL of ZnS: Ce〓 was the luminescence from independent centers. and there were the field induced-delocalization in this process anf it〓s the cause of low TFEL efficiency of ZnS: Ce〓. In this dissertation, different influence factors on TFEL of ZnS: Ce〓 were sdudied. The influence of different host lattice is different: The blue/green ratio of ZnS: Ce〓 in hexagonal system of ZnS is larger than that in cubic system of ZnS, and the TFEL peaks in hexagonal system of ZnS moves toward longer wavelength compared with that in cubic system of ZnS. The adding buffer layer was used in this stage. The solubility of Ce〓 in ZnS was small and it was another limit to TFEL brightness of ZnS: Ce〓 device. The solubility of Ce〓 increased ten times when using Li ions as flux, so that the TFEL brightness of ZnS: Ce〓 was enhanced. It was found that the appearing of ZnO in active layer improves the TFEL of ZnS: Ce〓: the brightness and the wave range of ZnS: Ce〓TFEL were enhanced.

本文采用TFEL的分层优化方案，优化组合了各膜层厚度，选择最佳制备条件，得到了ZnS：Ce〓的TFEL；根据Ce〓的能级结构，找到了判别Ce〓的EL的两个简单依据，并据此断定ZnS：Ce〓的TFEL的两个发射峰分别属于Ce〓的〓和〓跃迁；亮度波形测量表明ZnS：Ce〓的TFEL属于分立中心发光，分析认为在此过程中存在着较严重的场致离化，这也是ZnS：Ce〓的TFEL效率较低的一个原因；本文考查了影响ZnS：Ce〓的TFEL的各种因素，发现：基质的晶体结构对ZnS：Ce〓的TFEL有所影响，在六角相ZnS中Ce〓的TFEL优于立方相ZnS中Ce〓的TFEL：发射峰的蓝-绿比相对较大，且光谱向短波方向移动，在此项研究中本文采用了在发光层前增镀过渡层的办法，过渡层为六角晶相的ZnO；限制ZnS：Ce〓的TFEL器件亮度的一个原因是Ce〓在ZnS中的溶解度低，本文用Li离子作助溶剂增大了Ce〓的溶解度，增大幅度为一个量级，并且ZnS：Ce〓的TFEL亮度明显提高；从ZnS：Ce〓的TFEL光谱来看ZnS：Ce〓的TFEL波长覆盖范围较小，亮度也不高，达不到做为白色TFEL材料的要求，需要寻找新的白色TFEL材料；在研究ZnS：Ce〓的TFEL中还发现：发光层中ZnO的出现有利于ZnS：Ce〓的TFEL：发射峰变宽、亮度增大。

This is based upon a simple thermodynamic calculation that relates the absence of siderite (FeCO3) in some pre-2.2-Gyr palaeosols to atmospheric CO2 concentrations that would have been too low to have provided the necessary greenhouse effect.

该猜测是基于这样一个假设：低含量的菱铁矿表明大气中人们所熟悉的温室气体二氧化碳浓度相对较低，但大气中一定有高浓度的温室气体来补偿当时较低的太阳通量。

Exterior refinements include:+ A larger, polished stainless steel wire mesh front grille that enables the required additional airflow for engine heat dissipation + A new, lower front fascia that incorporates a larger lower grille for increased cooling capability; brake ducts for front caliper and rotor cooling and splitter to counteract lift created by larger grille openings + A new lower rear fascia that facilitates smooth airflow under the vehicle for improved cooling + Lower rockers that visually bridge the lowered front and rear fascias + A specific, fluidly sculpted hood designed to provide space for the engine's supercharger + Ten-spoke, flangeless, painted aluminum alloy wheels that assist in brake cooling + A higher, more rearward-positioned rear spoiler that enables balanced aerodynamic downforce with the front splitter + V-series badging on the vehicle's rear decklid and front doors, and "Supercharged" block lettering on the doors

外观的改进包括：+有较大，抛光不锈钢丝网的前格栅，使发动机所需的额外的散热气流+一个新的，较低的前仪表，它把一个较大的下格栅关于提高冷却能力；刹车管为卡钳和转子冷却和分配器足以抵消格栅的开口更大的提升+创建一个新的较低的后部汽车仪表板，便于在改善冷却车辆气流平稳+下摇滚乐的视觉弥补降低的前后面板+一个具体的，流畅，造型盖设计为发动机的增压器+十空间发言，凸缘，画铝合金轮毂的协助刹车冷却+阿更高，更向后定位的后扰流板，使平衡与前分路空气下压力+ V系列徽章的车的后部行李箱的大门，和&增压&块门上刻字

The prevalence rate of chronic diseases is higher among the rural residents of Beijing, and the prevention knowledge of chronic diseases should be improved. Mountainy inhabitants and the elderly with low educational level should be the principal population for health education about chronic diseases.

1、北京市农村居民对于慢性病患病率处于较高水平，慢性病预防知识有待提高；2、在慢性病健康教育过程之中，应注意考虑到文化水平较低的老年人群，以及目前知识水平较低的山区居民的需求。

This research discovered six brand relationships after referring to the theory of Fournier(1998):"High intimacy courtships","Low intimacy courtships","Best friendships","High intimacy courtships with memory","Low intimacy courtships without memory", and "committed partnerships with memory". As a result of considering time factor, the brand relationships would not be fixed in one type.

在参考Fournier(1998)之概念后，本篇研究提出球鞋迷与NIKE的品牌关系类型为『亲密程度较高的探索期』、『亲密程度较低的探索期』、『好朋友』、『亲密程度较高的探索期且在乎回忆』、『亲密程度较低的探索期且不在乎回忆』、『在乎回忆的承诺夥伴关系』六种形态，并且加入阶段性时间的考量，即消费者与品牌的关系不会固定在某种品牌关系的类型上。

Edit this paragraph the reasons for the color reaction of flame When the alkali metal and its salts in the ignition flame, the atoms absorb the energy of the electron from the orbit of low-energy transition to a higher energy orbit, but at a higher energy orbit is unstable electronic, it is fast transition back to a lower energy orbit, then the energy will be redundant form to emit light.

编辑本段焰色反应的原因当碱金属及其盐在火焰上灼烧时，原子中的电子吸收了能量，从能量较低的轨道跃迁到能量较高的轨道，但处于能量较高轨道上的电子是不稳定的，很快跃迁回能量较低的轨道，这时就将多余的能量以光的形式放出。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。