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- Study on the Resource of Nutrients in Sewage Irrigated Soil of Xin Jiang 新疆主要污灌区养分资源特征的研究
- Research on Concentration and Chemical Speciation of Heavy Metals in Sewage Irrigated Soil of Xin Jiang 新疆污灌区重金属含量及形态研究
- RESEARCH ON DAMAGE OF ORGANIC EXTRACTION OF SEWAGE IRRIGATED SOIL ON DNA IN PRIMARY LIVER CELL OF RAT 污灌土壤有机提取物对原代大鼠肝细胞DNA损伤的研究
- Heavy metal elements content of sewage irrigated soil in Xi'an and it's influence to quality of vegetable 西安污灌土中重金属含量及对蔬菜影响的研究
- sewage irrigated soil 污灌土壤
- Effect of sewage irrigation on wheat growth and its activate oxygen metabolism. 污灌对小麦幼苗生长及活性氧代谢的影响
- Glenn noted the water that percolates out from normally irrigated soil, technically known as irrigation return flow, is often as salty as 10 percent seawater. 格伦指出,从灌溉的土壤中渗流出的水在学术上叫做灌溉回归水,这种水的含盐量通常是海水的百分之十。
- The principles and methods of regionalizing of sewage irrigation in China are theoretically studied and a scheme for regionalization is suggested. 本文以地理学的观点、方法,提出了污灌区划的原则和方法。
- Sewage irrigation is not only a low cost and low energy-consuming way in dealing with polluted water, but also an effective way for sustainable utilization of water resource. 利用污水进行污水回灌农田是一种低费用、低能耗的污水处理途径,也是保障水资源可持续利用的有效措施之一。
- Shortage of water,pollution of tributary waters and incretion of sewage irrigation for farmland make the potentiality impact on environment and safety of agricultural products. 适当处理的城镇生活污水是一种稳定的水资源、在很大程度上缓解水资源的紧缺状况,利用污水资源的主要用途之一是灌溉农田。
- Based on irrigation experiment, this article studies the mechanism of effects of membrane tectorial depth on drip irrigation soil moist area. 通过灌水试验,研究沙土和中壤土在相同的单滴头流量和灌水量,不同的地膜膜边的埋深条件下,膜边的埋深对于滴灌土壤湿润区的影响机理。
- Blind sewage irrigation has caused the accumulation of poisonous and harmful substance in some regional soils and water sources,and environment has also been polluted in varying degrees,so that it has threated people health seriously in some region. 盲目的污水灌溉导致一些地区土壤、水源中有毒有害物质积累,环境受到不同程度的污染,在有些地区已经严重威胁了人类的健康。
- The factors of urban pollution are mainly amog (smoke and dust in air), fine sand flying up in air and secondary dust (ground dust), as well as dispersion of solid waste and sewage irrigation. 该市地处西北黄土高原西部,是黄河河谷盆地型城市,其城市污染代表了黄土高原干旱、半干旱条件下污染特征。
- We had seventy acres of good irrigated land. 我们有七十英亩灌溉良田。
- Some plants push their roots deep into the soil. 一些植物的根深深长入土中。
- Contamination of Soil from Sewage Irrigation and Its Remediation 污水灌溉对土壤的污染及其整治
- A pipe for carrying off water or sewage. 排水管排水或污水的管子
- Such crops won't grow in limy soil. 这类作物不能在石灰质的土壤中生长。
- What shall we grow in this alkaline soil? 我们应该在碱性土壤里种什么?
- There are a lot of worms in the soil. 泥土中有许多蠕虫。