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For some kinds of vegetables and pasturages, the contents of some heavy metals surpass the relevant quality standards, so when some crops were planted on the substrates, the uneatable species should be selected preferably and if some kinds of vegetables and pasturages must be adopted, the output could not be provided to mankind and also not be used in farming, in order to avoid harming peoples'health.5 The expediency evaluation model of pioneer plant on substrates was established and some plants were studied. The results show that the expediency evaluation of pioneer plants were respectively that clover was expedient to substrate 1, juniper, cotton and fescue were expedient to substrate 2 and juniper, annual bluegrass, fescue, cotton and clover were expedient to substrate 3.6 Some indexes to evaluate the capability of the phytoremediation on heavy metals and the comprehension about hyperaccumulator were put forward.

有多种植物的重金属含量超过了相应的国家标准，因此在基质上种植植物时，尽量选择非食用性植物品种，即使种植了蔬菜和牧草等植物，也不应将收获后的产品供人类食用或用于畜牧生产，以免危害人体健康。5建立和研究了复垦基质先锋植物的适宜性评价模型，结果表明，不同基质中适宜的先锋植物分别如下：基质1为苜蓿，基质2为桧柏、棉花和高羊茅，基质3为桧柏、早熟禾、高羊茅、棉花和苜蓿。6探讨了评价重金属元素植物修复能力的指标体系和&超富集植物&的概念。

Because the antecedent right is an open system, its kinds and contents will develop with social development.

由于在先权利是一个开放的体系，它的种类将随着社会的发展而发展，在先权利也必然会有所变化，基于此，对于此课题来讲，在理论上，也只能做到阶段性的归结，而随着社会的发展，实践中我们将会发现一些新事物所附带产生的新权利也有可能成为商标权的在先权利，比如互联网之前，谁也不可能想到所谓的&域名&这种权利会成为在先权利。

The course mainly introduces basic principles and methods of experimental techniques of cell engineering, which includesmedia preparation, sterilization and aseptic technique, virus-free seedling production, plant rapid propagation, immature embryo culture, pollen and anther culture, cell culture, protoplast culture, somatic hybridization, plant transformation, and so on. The contents of this course follow the from easy

该课程主要介绍细胞工程特别是植物细胞工程的基本实验技术及其原理与方法，包括：培养基配制、灭菌及无菌操作技术、无病毒苗培育、植物快速繁殖、幼胚培养、花药及花粉培养、细胞培养、原生质体培养、体细胞杂交及植物遗传转化等。

When leaves cleared up in the aqua fortis and perchloric acid, the contents of Cu Zn and Mn can influence the measurement of flame spectrophotometry.

用浓硝酸与高氯酸消解树叶，Cu、Zn及Mn含量较高，可直接用火焰原子吸收法测定。

This work aimed to identify the effects of argon shielding on the impurity gas contents and toughness of submerged arc weld metals.

研究了在埋弧焊过程中采用氩气保护对焊缝氧、氮含量和冲击韧性的影响。

Based on these hot and key spots in construction of high dams at present, Combining one of the 973 plan projects: Study of Global Stability of Geology Engineering System under Interaction of Several Factors(NO.2002CB412707), the dissertation mainly studies the stability anomaly and corresponding shape optimization. The main contents are as follows:The dissertation advances stability analysis method of arch dams based on arch-cantilever method, that is, the stability of arch ring and cantilever are analyzed respectively based on arch-cantilever method and corresponding formula of stability calculation is established. So the calculation methods of dam stress and stability are unified.

围绕目前高拱坝建设中的热点和重点问题，结合973计划课题：多因素相互作用下地质工程系统的整体稳定性研究(编号 2002CB412707)，重点研究高拱坝的稳定转异以及体形优化，现将主要内容归纳如下：本文提出基于拱梁分载法的拱坝稳定分析方法，即在拱梁分载法的基础上，分别分析拱圈和悬臂梁的稳定，建立相应的稳定计算公式，统一坝体结构稳定和应力计算方法。

Army engineering construction means a series of activities of barracks construction ensuring army war preparedness, training, life, production and so an, It is one of important contents of rear service work.

军队工程建设，是指为保障军队战备、训练、生活、生产等需要而进行的一系列营房建筑活动，是我军后勤工作中的重要内容之一，工程建设工作紧密地服从于国防建设的战略目标，是为国防发展战略服务的，也是国家基本建设的组成部分。

By using AAS and XRF, the contents of Cr, Pb, Mn, As, Se, Hg, Cd, Zn in raw coal, bottom ash and fly ashes are measured quantitatively in a 220 t/h pulverized coal boiler. Factors affecting the distribution of trace elements are investigated, including fly ash diameter, furnace temperature, oxygen content and trace elements' characters. The coefficient of Meij is also improved to more directly show element enrichment in combustion products. Elements may be classified into three groups according to volatility features of trace elements.

采用原子吸收分光光度计和X射线荧光光谱仪，定量测定了电厂煤粉炉中原煤、底渣、飞灰中Cr、Pb、Mn、As、Se、Hg、Cd、Zn等微量元素的含量，分析了飞灰粒径、炉膛温度、炉内含氧量、微量元素自身性质对微量元素赋存、挥发特性的影响，并根据元素的挥发特性将元素进行分类，得出表征微量元素排放特性的3种数值，并与我国和欧盟垃圾焚烧微量元索排放标准相对照。

Latiusculum in the gold field is 135, 111 and 147 times as much as that in the background area, respectively; and Cu and Pb contents in leaf ash of these three types of plants in the gold field are 12, 8, 11 and 11, 11, 14 times as much as that in the background area, respectively.

对从金矿区和背景区采集和试验种植的植物样品的研究表明，在杉木、马尾松和蕨的叶灰分中，矿区相对于背景区，前者的Au含量是后者的135倍、111倍和147倍；前者的Cu是后者的12倍、8倍和11倍；前者的Pb是后者的11倍、11倍和14倍。

The vegetable breeds which average contents of heavy metal are high have three-coloured amaranth, asparagus lettuce, raw vegetable, onion; which variable coefficient of heavy metals are big have cabbage, hot pepper, onion.

重金属平均含量明显较高的蔬菜品种有苋菜、莴笋、生菜、葱子；变异系数较大的蔬菜品种有莲白、海椒、葱子。

He paid $5,000 for this cupcake.

他我这个纸杯蛋糕花了5000美元。

I mean, if you want to, that is

我的意思是，如果你们想吃的话。