1.
mining valuable minerals from a placer by washing or dredging.
通过从冲积矿洗涤或挖泥来提取贵重矿物的开矿。
2.
ORIGIN OF ALLUVIAL SAPPHIRE DEPOSITS ASSOCIATED WITH EASTERN AUSTRALIAN VOLCANIC PROVINCES
与东澳火山岩区有关的蓝宝石冲积矿床的成因
3.
Many minerals are found in alluvial deposits of sand, clay, or gravel. They have been carried along and then laid down by flowing water.
许多矿物都是在砂土、泥土或砾石冲积矿床中发现的。这些矿物被流水搬运并随之沉积下来。
4.
the particles and flakes (and sometimes small nuggets) of gold obtained in placer mining.
开采冲积矿获得的颗粒状和薄片状（有时呈小块状）的黄金。
5.
Dredging for alluvial gold.
用挖掘机找冲积金矿
6.
Discussion of the Sedimentary Characters of Alluvial-proluvial Fan of Bauxite Series,Jiujialu Formation in Central Guizhou
论贵州中部九架炉组铝矿系冲洪积扇沉积特征
7.
A glacial or alluvial deposit of sand or gravel containing eroded particles of valuable minerals.
砂矿，砂积矿床一种砂砾或碎石的冰河沉积物或冲积沉积物，包括有价值的矿物成份
8.
To wash gravel, sand, or other sediment in a pan.
淘金在淘金盆中冲洗矿砂、沙子或其他沉积物
9.
Placer mining: Oldest method of recovering gold from alluvial deposits.
砂矿开采:从冲积层回收黄金的最古老方法。
10.
THE MINERALIZATION LAWS OF THE ALLUVIAL GOLD PLACERS AT ALTAI MOUNTAIN
阿尔泰山冲积型砂金矿的砂金富集规律
11.
Deep Alluvium Mine Shaft Drilling Construction Method
深厚冲积层煤矿井筒钻井法施工的探讨
12.
The main ore deposit and the east ore deposit underwent strong weathering and denudation, and alluvial enrichment occured since Cenozoic era.
主、东矿床新生代以来经受了强烈风化剥蚀 ,并有冲积富集现象 .
13.
Kinetic Monte Carlo Simulation of Deposition of Perovskite Ferroelectric Thin Film by Pulsed Laser Deposition;
脉冲激光沉积钙钛矿铁电薄膜的动力学蒙特卡罗模拟
14.
Research and application of mine vertical partial insulation freezing technology in super-thick alluvium
特厚冲积层矿井竖向局部保温冻结技术研究与应用
15.
braided-fan-delta deposit
网状冲积扇三角洲沉积
16.
Construction of the water source place in alluvial-fan of MiLan River provides the guarantee for water supply on people life and production in the Robupo Sylvite mineral area.
米兰河冲洪积扇水源地的建设是为罗布泊钾盐矿区生活和生产用水提供供水保障。
17.
The article introduces the distributing area, thickness change, the old river erosion and sediment surroundings of conglomerate layer K21.
就大同矿区K21砾岩层的分布范围、度变化、河流冲刷现象、砾径变化、积相等进行了介绍。
18.
A small body or accumulation of ore.
矿坑小矿体或矿石的堆积