查询词典 urban area

According to the international methods of pest risk analysis and characteristics of urban forestry in Beijing,a quantitative risk assessment system in Beijing for the main non-indigenous pests was proposed.This system was used to analyze three non-indigenous species, Dendroctonus valens,Hyphantria cunea and Apriona swainsoni. The results show that the risk of these three species in the Beijing area is 2.46, 2.30 and 2.02, all highly risky.

该文参照国际上有害生物风险分析方法，结合北京地区城市林业特点，提出北京地区重大外来有害生物风险量化评估体系，并应用该评价体系，进行了红脂大小蠹、美国白蛾、锈色粒肩天牛对北京地区的风险评价。3种有害生物的量化评估值分别为红脂大小蠹2.46、美国白蛾2.30和锈色粒肩天牛2.02，因此对北京地区而言，3种昆虫皆为具高度风险的森林有害生物。

We strengthened energy conservation in key industries, enterprises and projects, and conducted pilot projects to develop the circular economy. We worked hard to prevent and control water pollution in key river valleys and regions, such as the Three Gorges Reservoir area, the Songhua River, the sources and routes of the South-to-North Water Diversion Project, and the Bohai Sea. We carried out key environmental protection projects to desulphurize emissions from coal-fired power plants, treat urban sewage and dispose of waste safely.

积极推进重点行业、重点企业和重点工程的节能工作，开展循环经济试点，加强三峡库区、松花江、南水北调水源及沿线、渤海等重点流域和区域水污染防治工作，实施燃煤电厂脱硫、城市污水处理、垃圾无害化处理等环保重点工程。

Income satisfaction degree; eudemonia; marriage; difference between urban and rural area

社会科学II，社会学及统计学，社会生活与社会问题收入满足度；幸福；婚姻；城乡差异

At the same time, North Main Street area of the three cities and the main road five times during the day Gangan Road basically eliminates the garbage exposed, the realization of all the "security sweep away the whole" urban city landscape there has been a fundamental change.

同时，北大街地区三条城市主干道和五条次干干道白天基本上消除了裸露垃圾，全部实现了&一扫全保&城市市容市貌发生了根本性的变化。

Bright Qing Dynasty region composition centers industry and commerce of two acting Jinan relatively, with Ming Dewang government office (Qing Dynasty strokes a courtyard) for the center, organization of space of urban economy function presents the characteristic that gives homocentric cirque shape to distributing, apparent ground is known the effect of pattern by the diplomacy inside the city, area of industry and commerce is concentrated at artery two side are mixed city gate inside and outside, the free market of agricultural products distributings at suburbs, but environment of geography of ancient city suburbs and traffic situation have very big difference, suffer its to affect on the west outskirt economy is most active, boreal outskirt is the flattest.

明清两代济南工商业区布局相对集中，以明德王府为中心，城市经济职能空间组织呈现出同心圆环状分布的特点，并明显地受到城内外交通格局的影响，工商业区密集于干道两侧和城门内外，农贸市场分布于四郊，但是古城四郊地理环境和交通形势有很大差异，受其影响西郊经济最为活跃，北郊最萧条。

Methods: The following five sites in the city were selected as monitoring spots, namely, the First Smelter of Tongling Nonferrous Metal Group, the second Smelter of Tongling Nonferrous Metal Group, the Changjiang High-speed Passageway, Fenghuangshan Copper Mine district, residential area, respectively. The moss species Hypnum plumaeform e collected from Huangshan mountain was placed in nylon bag of 15.5 cm×5.5 cm in size and 2.0 mm×2.0 mm in meshes, with each bag having 3 g moss and then sealed by a nylon wire. Moss bags were suspended in five urban exposure sites and then gathered after two months. The content of heavy metal in the tested moss were analysed by atomic absorption spectroscopy.

选取铜陵市的铜陵一冶、铜陵二冶、长江快速通道、凤凰山铜矿区和居民区5处监测点，以采自黄山的大灰藓为材料，用尼龙筛网（网眼2.0 mm×2.0 mm）做成15.5 cm×5.5 cm的矩形袋子，每袋放3 g，2007年3月22日悬挂于各监测点，完全暴露在空气中，2个月后取回，采用原子吸收光谱法对样品中Cu、Cd、Cr、Pb、Zn 等重金属元素含量进行测定。

At the same time, with the development of urban constructing, area of impenetration is increasing year after year, which makes many seriously short of water city not taking full advantage of rainwater. It not only enormously wastes to precipitation, but also induces flood and waterlogging calamity.

与此同时，随着城市建设的不断发展，不透水面积逐年增加，又使得许多水资源严重缺乏的城市，城区大量的雨水没有得到充分的利用而白白流失，同时还可能直接造成城市的洪涝危害。

And at that time, Liwan District, the area of people in general are not prepared to leave the urban areas.

并在那个时候，荔湾区，该地区的人一般不准备离开市区。

In agriculture, introduced a total investment of 60,000,000 yuan Zhangjiajie in Hong Kong and Vietnam's pig production and processing projects with a total investment of 12,000,000 yuan in Guangxi oak, Jiang Yun-Rosin Rosin's line item; in the flow of commerce in the area, the introduction of a supermarket Fung Choi, Maney Supermarket, High Tech Computer City furniture and other large-scale supermarkets, 6; in the development of urban construction, the completion of the He Long Sports Center, Division race, Kim Garden, Kangxi Trade City, pedestrian film, the natural gas pipeline network, such as a large number of investment projects Building.

在农业方面，引进了总投资6000万元张家界港越公司乳猪生产加工项目，总投资1200万元广西橡州运江松香公司松香生产线项目；在商贸流通领域，引进了丰彩超市、梅尼超市、宏达家私城等各类大型超市6家；在城市建设开发方面，完成了贺龙体育馆、科赛、金豪花园、康茜商贸城、影视步行街、天然气管网等一大批招商项目的建设。

This city had entered into the primary stage of suburbanization.(3)The monocentric urban model indicates that the population density peak value of Nanjing in 1990s is still high, and people continued to concentrate to the center area.

多中心模拟的结果表明，1990年南京市表现为一主一次的双中心结构，但次中心刚刚发育，还很不明显；2000年南京市仍然保持双中心结构，次中心发育较为成熟。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。