查询词典 water cycle

Water industry is accelerated, modern water industry and sustainable development of water resources will be finally realized. To the status of China rapid economy development, serious shortage of water resources, and great gap between water supply and demand, new thoughts and approaches are studied in this paper to resolve the problems under the condition of socialistic market economy.

本文针对我国经济发展迅速，水资源严重短缺，供需矛盾异常突出的现状，在学习国内外研究成果的基础上，探索和研究在市场经济条件下解决我国水资源问题的新思路、新途径。

Compared with conventional fertilizer application pattern , soil infiltration capacity , water-conserving ability , water availability and water use efficiency under hole-source pattern were all increased to different degree . Water distribution on soil profile, especially the soil water distribution in root zone was more reasonable . Therefore , modulating function of soil reservoir could elaborate effectively .

孔源水肥调控技术下，土壤的入渗性能，保水能力，水分的有效性及水分利用效率较常规耕作施肥方式均有不同程度的提高，对土壤水分剖面分布的调节，特别是对作物根域范围内土壤水分的调节更趋合理，充分发挥了土壤作为巨大"水库"的调节作用。

Coal-bearing seams in Shenyu mine area inclines northwest, the bedrock thickness on the coal seams increases northwest, and there are generally red soil water-resisting layer on the bedrock. To study on the coal-water friendly geological conditions for the water-resisting layer during the coal mining process, and to determine mining zones without causing obvious water table decline are an important approach to the water-conserving mining in the fragile ecological mine area of North Shaanxi.

榆神矿区含煤地层整体向北西倾斜，煤层上覆基岩厚度向北西方向增大，基岩之上普遍分布有红土隔水层，深入研究煤炭开采过程中不对含水层造成破坏的煤水共生地质条件，确定既可采煤、又可实现水位不明显下降的区域，是陕北生态脆弱矿区保水开采的重要途径。

This thesis discusses the evolvement of Hebei Province water resources situation in detail, making clear the bad influence such as environmental anhydration, soil desertification, aggravating water pollution and deteriorating geologic environment on the Hebei water ecological environment from decrease of water resources and increase of water consumption together with economy development.

论述了河北省水资源演变情势，阐明随着水资源量的减少和经济发展用水量的增加对水生态环境所产生的不良影响——环境干化、土壤沙化、水质污染加重、地质环境恶化等。

BEIJING LIDU BOYE WATER TREATMENT CO.,LID is a high-tech enterprise that has abundant experience and be specialized in large-scale civil construction,hotel,apartment and office's air conditioning cooling water,chill and heating water's inhibition and antiscale,living cold-hot water's rust elimination and scale resistance and various water quality processing.

北京丽都博益水处理科技有限公司中国大陆北京丽都博益水处理科技有限公司是一家专业从事大型民用建筑、酒店、公寓、写字楼的空调冷却水、冰冻水、采暖水的缓蚀阻垢、生活冷热水地除垢等各种水质处理的企业，拥有丰富的水处理工程经验。

BEIJING LIDU BOYE WATER TREATMENT CO.,LID is a high-tech enterprise that has abundant experience and be specialized in large-scale civil construction,hotel,apartment and office's air conditioning cooling water,chill and heating water's inhibition and antiscale,living cold-hot water's rust elimination and scale resistance and various water quality processing.

北京丽都博益水处理科技有限公司 China 北京丽都博益水处理科技有限公司是一家专业从事大型民用建筑、酒店、公寓、写字楼的空调冷却水、冰冻水、采暖水的缓蚀阻垢、生活冷热水地除垢等各种水质处理的企业，拥有丰富的水处理工程经验。

Soil water, a sort of significant water resources, is a key in transformation among surface water, groundwater, atmospherically water and soil water.

水分是干旱、半干旱地区植被建设最重要的生态制约因子，对植被恢复具有极大的限制性。

The pattern of the animal virus of the PV〓, plant virus TMV and the phage of infection bacteroides fragilis in different water body (distilled water, Min River water, drinking water, life sewage and sterile sewage water used film) at different temperature (low, room and medium temperature) were studied.

探讨了肠道病毒PV〓、植物病毒TMV及脆弱拟杆菌噬菌体B.fp在不同水体（闽江水、自来水、超纯水、生活污水及膜过滤生活污水），不同温度等静态条件下的灭活规律。

City rivers are severely polluted. Raw water maintains high quality besauce of long-distance water transfer and water intake position shift. Part of water suppy comes from underground water.

城市河道受到比较严重的污染，但由于采取了远距离调水、取水口迁移等措施，城市供水的原水水质得到了较好的保证。

The result of this research demonstrates that water sensitivity damage is the fundamental cause that fresh Water can't be injected normally; the quality of injected produced water is out of standard is one of the key factors causing reservoir damage; the mixing of produced water and formation water tends to produce calcic scale, being another key factor of causing reservoir damage.

研究结果表明：水敏性损害为清水不能正常注水的根本原因；注入水水质不达标是造成储层损害的关键因素之一；污水与地层水混合易结钙质垢，是污水造成储层损害的另一关键因素。

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。