查询词典 infertile soil

Aiming to influence of soil water and salt on plant mechanics in salinization distribution, tield experiment are conducted to study influencing factor and regular of temporal and spatial variation of sunflower＇s leaf water potential.

针对盐渍化地区水、盐对作物的机理影响，采用田间小区试验研究了在盐渍化地区油料向日葵叶水势的影响因素及叶水势的时空变化规律。

They need to spend money to clear clean soil or to create composts to rehabilitate the 50 current ground.

他们需要花费金钱对清楚的干净的土壤或创造天然肥料使恢复原状 50 当前的地面。

Interaction between reinforcements and surrounding soil is one of the most important characters of composite grounds.

桩与基土的相互作用是复合地基一个重要的工作特征。

Interaction between reinforcements and surrounding soil is one of the most important characters of composite grou...

桩与基土的相互作用是复合地基一个重要的工作特征。

Genetic diversity of carbon-nitrogen cycle was relative to soil organic matters,total nitrogen,carbon-nitrogen ratio,available phosphor and water content with different degrees.

碳氮循环基因多样性与土壤有机质、全氮、碳氮比、速效磷和土壤含水量等生态因子有不同程度的相关。

The interference produced on secondary cable is discussed in this paper.The effects of soil resistivity, relative permittivity, the density and area ofgrounding network are described.

论文对端部连接在地网上的二次电缆受到的干扰进行了分析，计算了土壤电阻率、相对介电常数、地网的疏密程度以及地网面积对电缆端部芯皮电位差的影响。

With the case study on Wanzhou in the three-gorges reservoir area, it had been studied and analyzed that the potentialities of exploitation and use on land and ecological safety by established land use database, and it had been revealed that serious loss of water and erosion of soil, ecological environment fragility, the water conservancy project submergence a large amount of land, arrannements of the numerous immigrations need a large amount of land, contradictory remarkableness among human and land, and the latent crisis by extensive management land were main crises and questions of the land use.

利用建立的土地利用现状数据库，以三峡库区最大淹没区万州为研究对象，对库区土地开发利用潜力及生态安全性进行了分析和研究。揭示了库区土地资源利用中存在的主要危机是水土流失严重、生态环境脆弱，三峡工程淹没土地多、移民迁建占地比重大、人地矛盾加剧及粗放经营土地带来的安全隐患等问题。

The aim of this study to provide scientific base for control and remediation and treatment of soil pollution.

［目的］为污染土壤的控制和修复治理提供科学依据。

Therefore, the study of heavy metals contaminated soil remediation is of profound theoretical and practical significance.

研究重金属污染土壤修复具有重大的理论和实践意义。

In this dissertation, the application of surfactant to soil organic pollution remediation and its mechanisms were reviewed.

修复和缓解土壤有机污染是环境科学和工程等领域急待解决的热点问题之一。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48