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Air pressure differentials should be such that there is no flow of air between the work area and the external environment or risk of contamination of outer clothing worn outside the area; f an air lock system for the passage of equipment, which is constructed so that there is no flow of contaminated air between the work area and the external environment or risk of contamination of equipment within the lock.

f 设备的进出要有气闸系统，其结构要保证没有工作区和外界环境之间污染空气的流通，或气闸室里的设备没有被污染的风险。

According to data based on inspection research which was carried out from 2003 to 2005,in the area of sea estuary (ZhangJiang Estuary,DongXi Estuary) and the alongshore sea area,we have done a series of analysis and research on the impacts of the effluents from the coastline estuary to the water eutrophication of the alongshore sea area.

根据2003～2005年对福建省漳州市入海河口和近岸海域的监测调查资料，分析研究了入海河口污染物输入对近岸海域水体富营养化的影响，结果表明：河流陆源的有机、氮、磷污染物入海通量越大，所对应的近岸海域海水水质越差，富营养化趋势越明显

Key forage plants consist of alfalfa, erect milkvetch, tall fescue, perennial ryegrass, crownvetch, white clover, red clover alsike clover, common orchardgrass, smooth brome; planting divisions with obviously optimal combinations of forage plants in Henan province cover the following 6 respects:（1）Northern plain forage planting division;（2）North-west mountain area forage planting division;（3）Middle-east low lying plain and nan-yang basin forage planting division;（4）Western mountain area forage planting division;（5）Huaihe river-south and Tongbai mountain area forage planting division;（6）Eastern plain forage planting division;These conclusions will provide necessary theoritical data or base for right choose of foeage plants as well as great development of grass industry in the future in Henan province.

结果表明：适合河南省的当家草种有10种，分别是：紫花苜蓿、沙打旺、苇状羊茅、多年生黑麦草、小冠花、红三叶、杂三叶、鸡脚草、无芒雀麦；适合河南省草业优质发展的草种区域有6个，分别是：豫北平原牧草种植区、豫西北黄土丘陵和太行山地种植区、豫中东低洼平原和南阳盆地种植区、豫西山地种植区、淮南与桐柏山区种植区、豫东平原种植区，并且明确了各区域内以当家草种为核心的草种优化组合。河南省当家草种的制定和草种区划的确定有利于为河南省各地草种的正确选择和草业未来大发展提供理论依据。

The area used to be known as Nacochtank, which was a settlement of Necostan or Anacostan Indians. The Indians lived well there, surviving on an almost endless supply of fish from the river. The first European explorer to visit this area was Captain John Smith in 1608. His visit opened up the area to European settlement along the Anacostia River a few years later.

过去，这个区域较为人所知的名字是 Nacochtank ，它是 Necostan 或 Anacostan 印地安人的定居地；住在这儿的印地安人生活过的很好，他们依这条河内源源不绝的鱼儿维生。1608年时，第一个造访此处的欧洲探险家是约翰史密斯上尉( Captain John Smith ，因其与印地安公主 Pocahontas 的故事而为人所知)，这个地方因他的造访而开启，几年后，欧洲人开始沿着阿纳卡斯蒂亚河创建殖民地。

Aiming at the chaos complexity activities which may occur during the evolution process of mining area ecosystem, we emphatically analyze the application of associated dimention judgment method and Lyapunov factor analytic approach based on phase space restructuring technique. We can ascertain whether mining area ecosystem have chaos characteristic or not according to these methods. It has important theory value for complexity research of mining area ecosystem.

其次，针对矿区生态系统演变过程中可能出现的混沌复杂行为，基于相空间重构技术我们重点分析了关联维数判断法和Lyapunov指数分析法的应用，依据这些方法，我们可以定量的判断矿区生态系统是否具有混沌特性，这对于我们进行矿区生态系统的复杂性研究具有重要的理论价值。

First, give some methods for calculating the area of anomalistic area on plane, then deducing the methods special for calculating the sea area such as method of calculating coordinate points and method of counting grids, also, another method of counting pixels.

通过多次实测计算和数据分析，曲面坐标法和数点法的计算结果是较为稳定的、并且精确度高。

Measures such as area ratio (the area under the aperture opening divided by the surface area of the aperture wall) and aspect ratio (aperture width divided by stencil thickness) can be used to determine appropriate aperture sizes.

因此，严格控制孔的质量是钢网成功设计的关键。特别是小量沉积材料要求精度高时的高精度要求。

Relevant person in charge of the Ministry of Construction on the 20th in an interview with reporters, said that since April, the acquisition of real estate development, land area, commercial area of newly started construction area and the increase in apparent drop in the momentum expansion of investment demand has been effectively controlled, to inhibit the future for a period of time the scale of investment in real estate development will also have a positive impact.

有关负责人建设部20日在接受记者采访时说，自4月以来，购置房地产开发，土地面积，商业领域的新开工建筑面积的增加明显下降势头扩大投资需求得到有效控制，抑制未来一段时间的规模，房地产开发投资也将产生积极的影响。

The competition area is inside a circle of 9m in diameter. Outside the competition area is the protection area with 1.5m in width.

比赛区域为9米直径的圆，比赛区域外围绕着同样厚度的保护区形成12平方米的摔跤垫。

The method of area ratio,the area of a circle in sample plot to the whole area of the circle, in which the distributing point is the center and the scale distance is the radius,is defined as the weighted coefficient of edge correction in this paper.

将边缘效应的权重值定义为以分布点为圆心，尺度距离为半径作圆，圆在样地内的面积部分与整个圆面积之比。

The use of the web to spread fears that flicking the switch on the LHC could create a Black Hole that could swallow up the Earth particularly concerned him, he said.

他说，使用互联网散布恐慌说启动LHC会生成一个可能吞噬地球的黑洞的做法让他感到忧虑。

Not a single word have I written down.

我一个字也没有写下来。