1) source distribution
源区分布
2) Source region
源区
1.
The variation character of seismic velocity ratio in source region and field area before and after zhangbei Ms6.2 earthquake;
张北6.2级地震前后地震波速比在源区与场区的变化特征
2.
In this paper,the reason of producing singularity has been introduced in great detail when solving the electric field in the source region and avoiding the difficulty,including vector function method,reducing space dimension method,principal volume method,coordinate transforming integral method.
介绍了在源区电场求解时产生奇异性的原因以及解决这一困难的几种方法 。
3.
In this paper, by analyzing the progress solving inside a current-carrying region under distribution source model, the conclusion is that the singularity solving the source region is due to the exchange of the derivative operator and the integration operator.
本文通过对源区电场求解过程的分析，指出了产生源区电场求解的奇异性是由于不适当的微、积分算子交换次序所形成的。
3) source area
源区
1.
On the ecological environment status in the source area of Yangtze River and Yellow River and its control countermeasure;
试论长江、黄河源区生态环境现状及其防治对策
2.
Distribution of footprint and flux source area of the mixed forest of broad-leaved and Korean pine in Changbai Mountain;
长白山阔叶红松林通量观测的footprint及源区分布
3.
Distribution, chemical characteristics and source area of volcanic glass in the South China Sea;
南海火山玻璃的分布特征、化学成分及源区探讨
4) Provenance
源区
5) source
源区
1.
Geochemistry of Quaternary basaltic volcanic rocks of Weizhou island in Beihai City of Guangxi and a discussion on characteristics of their source;
广西北海涠洲岛(含斜阳岛)第四纪玄武质火山岩的地球化学性质及其源区特征
2.
05, indicating that the source of Jinan gabbro intrusion is enriched-mantle and have a heterogeneous characteristic.
济南辉长岩体的Rb Sr全岩 矿物参考等时线年龄为 144± 2 5Ma ,线性差的原因可能是该岩体来自于锶、钕同位素初始比值不均一的源区 ,结晶时处于同位素不平衡状态。
6) critical source areas
关键源区
1.
Identification of critical source areas: an efficient way for agricultural non-point source pollution control;
关键源区识别:农业非点源污染控制方法
2.
Because of the big difficulties,identifying the critical source areas for phosphorus loss becomes the focal point of the non-point sources pollution control.
农业非点源磷污染是我国农村水环境面临的严重污染问题,由于非点源污染治理难度大,所以识别流域内磷流失的关键源区成为非点源污染控制的重点。
3.
The primary issue of efficiently controlling and managing agricultural nonpoint source pollution is how to identify critical source areas or the sensitive regions of pollutants loss from agricultural lands.
在农业非点源污染研究中 ,确定农业非点源污染的关键源区或危险区域是开展有针对性研究和控制农业非点源污染的首要问题之一。
参考词条
补充资料：《苏联药用植物及近缘植物分布区(图谱)》
《苏联药用植物及近缘植物分布区(图谱)》
А реа(?)ы (?)екарсмвенных u ро(?)смвенных uмрасменuu: CCCP Ам(?)ас
sulian yoovong zh一wu Ji]inyuan zhlwu fenbuqu(tupu)《苏联药用植物及近缘植物分布区(图谱)》(A尽泪刀、J五六刀那mBeH勘“ul轰义又mBe凡肋议械Pac服Hu反:CO皿〕A二a。)俄国B.M.施米特主编。列宁格勒大学出版社出版，1983年出第一版，1990年出第二版修订版。本书记载了前苏联1980年出版的《苏联药用植物资源及分布图集》未记载的152种药用植物和近缘植物。按恩格勒系统分科、属叙述。重要的属叙述了前苏联药用植物的数量和利用前景。每属中选一至若干种进行介绍，包括:该种的拉丁学名，在前苏联的地理分布、生境、利用部位及其主要有效成分、药理作用、制剂和功效。有些种类还介绍了种的生态特性、蕴藏量和可提供生产的经济量。该书以文字叙述为主，但每种都附有一幅分布区图(不同于前书的是黑白素图)，在每科叙述之后。分布区图采用点线结合的方法绘制，用线条勾划出分布范围，用圆点标明主要分布地点，分布图主要根据已有的标本资料编绘。 (王良信)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。