查询词典 soil survey

In this paper, it mainly adopts an analytical method of contrast, with shelter belt and noshelter belt are research object, though field survey and soil fertility index analysis, discussJilin province Nong\'an Fulongquan town mechanism fertility degeneration of chernozem.

本文主要采用对比分析的方法，以防护林带和非防护带两种不同生境影响下的土壤为研究对象，通过田间调查和对土壤肥力指标分析，探讨了吉林省农安县伏龙泉镇境内黑钙土土壤的退化机理。

A new geochemical survey may expose the extent of China's soil contamination problem.

新一轮的全国性的土壤污染状况调查暴露出污染的程度。

A preliminary study on laws of soil and water losses in gneiss, which is the main type of rocks in Taihang, was carried out in this paper on the bases of examination data, survey of flood and historic statistic data.

根据试验观测数据和洪水灾害考察结果，结合历史统计资料，对河北太行山的主要类型岩石－片麻岩低山区的水土流失特点进行了初步研究。

So the systematically study of loess landslides are emergently needed. Based on detailed investigation and survey of characteristics of environmental geology, engineering geology, hydrometeorology in Tongchuan, the distribution characteristic and the outer, inner factor of loess landslides are studied; and it is concluded that the rainfall and artificial engineering activity are the leading causes of loess landslide among various factors. Through plenty of tests of soil samples, it is researched that the loess"s physical mechanics characteristics, the loess landslide"s formation mechanism and kinematics mechanism.

本文在详细调查和勘察铜川地区的环境地质、工程地质及气象水文特征的基础上，对黄土滑坡的分布特征和滑坡形成的内外因素进行了深入剖析，认为在各种影响因素中，大气降水和人类工程活动是铜川黄土滑坡的最主要的诱发因素；在采集大量的土样并进行试验的基础上，对黄土的物理力学特征和黄土滑坡形成机理、运动学机理进行了研究，推导出了滑坡运动机理中的孔压参数A_D、B_D分别与孔隙比和饱和度的统计关系。

Soil natural thermoluminescence survey is the nuclear technical method which has better penetrating power.

土壤天然热释光测量是一种穿透能力较强的核技术方法，能探测到地下较深处的地球物理信息。

With the application of GIS,RS and quantification theory, fast survey of soil and water loss in Xiamen was accomplished.

利用GIS、RS和数量化理论，对厦门市水土流失进行快速调查。

Survey of soil and water loss ; RS ; GIS ; quantification theory

水土流失调查； RS ； GIS ；数量化理论

Chang'e-I is expected to fulfil four scientific objectives, including a three-dimensional survey of the Moon's surface, analysis of the abundance and distribution of elements on lunar surface, an investigation of the characteristics of lunar regolith and the powdery soil layer on the surface, and an exploration of the circumstance between the earth and the moon.

嫦娥预计完成四大科学目标，其中包括一个三维的调查研究月球的表面，并分析了丰度和元素分布对月球表面进行，调查结果的特点，月球regolith和粉状土壤层对地表，并探索的情况下，与地球和月亮。

It will fulfill four scientific objectives, including a three-dimensional survey of the Moon's surface, analysis of the abundance and distribution of elements on lunar surface, an investigation of the characteristics of lunar regolith and the powdery soil layer on the surface, and an exploration of the circumstance between the earth and the moon.

它在月球表面将履行四个科学宗旨，包括元素的月亮的表面、分析对丰盈和发行的一次三维勘测月球风化层的特征的调查和粉状土壤在表面和情况的探险分层堆积在地球和月亮之间。

In present study, field survey, solution culture experiment and soil culture experiment were carried out to characterize Zn uptake and accumulation of Sedum alfredii Hance.

本研究通过对中国东南部一些古老铅锌矿区植被的调查，首次发现矿山生态型东南景天是一种锌超积累植物。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐