| 释义 |
placer gold短语¹³¹⁶²⁰⁺³
基本例句
砂金
A placer gold area is usually distributed in the flowing regions of plain terrain, belt-like rivers.
砂金地区一般分布在地形平坦、呈带状的江河流域。 cnki
At last, exploring guides for placer gold deposit are pointed out on the base of study of gold source, placer gold distributive features and enrichment law.
结合金的来源、矿床的分布特征和富集规律，指出了该区今后砂金找矿方向。 cnki
The coefficient of dissolution can indicate the source of placer gold.
溶蚀系数可指示砂金是近或远原生源金矿。 cnki
The discovery of the Mayum placer gold deposit has great significance for gold prospecting and the study of the metallogenic theory in Tibet and the Tethys- Himalaya metallogenic domain.
马攸木砂金矿床的发现，对西藏地区及古地中海—喜马拉雅成矿域的找矿与成矿理论研究具有重要意义。 cnki
The isotope analysis of trace lead in placer gold has special meaning.
砂金中的微量铅同位素分析具有特殊的意义。 cnki
The regenerated mineralization of placer gold by thawing action are also proved through simulation, contrast and experiment.
并通过模拟对比实验结果，论证了融冻作用使砂金再生成矿。 chemyq
The secondary gold includes oxidized gossan type and placer gold.
次生金矿有氧化铁帽型及砂金。 cnki
A new technic of purifying gold, silver from placer gold without pollution was proposed.
提出了一种无污染从砂金中提纯金、银新工艺。 chemyq
Exogenous deposits of gold including auriferous conglomerate deposit and that of loose placer gold form under the open conditions on the earth surface.
外生金包括砾岩金和松散砂金，是外能作用在地表开放条件下形成的。 cnki
Glued layer exists in placer gold deposits in the south of China which influences upon gold dredging greatly.
南方许多地区的砂金矿床存在对采金船开采影响极大的胶结层。 cnki
High valuation and great attention are also given to placer gold deposits and vein gold deposits, which are the main sources of gold in the different parts of our country.
对全国各省区金的主要来源的砂金矿床和脉金矿床，也给予很高评价与重视。 cnki
Regional volcanic strata are the source of placer gold and laterization process is the main stage of formation of placer gold.
区域火山岩地层是砂金的矿源，地表赤红壤化可能是砂金形成的主要阶段。 ilib
The paper deals with the grain- size analysis methods which combined sieve analysis with microscope measurement for placer gold and presents an idea for grain-size division of placer gold.
本文介绍砂金粒度分析采用筛析-镜测的联合粒度分析方法，并提出砂金粒度的分级意见。 cnki
The composition and characteristic of suspended matter from industrial wastewater of placer gold and the experimental results of natural settling were reported.
本文介绍了砂金生产废水中悬浮物的组成、性质以及自然沉降试验结果； cnki
The REE contents of84 placer gold samples and7 hard rock gold samples in Heilongjiang province are determined by plasma mass spectrographic analysis.
对黑龙江省84个砂金样品及7个岩金样品，用等离子质谱仪分析了它们的稀土元素含量。 http://dict.cnki.net
Placer gold in China has the characteristics of small scale, wide distribution, low grade and fine granularity. The authors invented a new type of portable placer gold washing set.
前言： 针对我国砂金矿“小而分散，贫而细”的实际特点，本文提出了一种新型便携式选金机组。 chemyq
Placer gold samples are rich in light REE, the characteristics of REE contents of which partly inherited from hard rock gold.
砂金样品则以较富集轻稀土为特征，稀土元素含量继承了岩金的部分特点。 cnki |