placer的例句大全

The objection to the placer origin have centred around the softness of uranium compounds.

反对砂矿成因的论据主要是:铀的化合物不耐磨蚀.

Pinggui Sn placer in Guangxi was discovered and exploited as early as the Bronze Age.

“平桂”砂锡矿,早在“青铜时代”已被发现、开发利用.

In which a long history of placer gold mining.

其中砂金开采历史悠久.

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.

The method of gold placer mineral includes significant prospecting information in the prospecting assessments gold deposits.

在金矿找矿和评价工作中,重砂测量方法能提供重要找矿信息.

This primitive form of placer mining is still used in some places for panning gold.

这种原始的砂矿开采形式至今还在一些地方用来淘金.

In this thesis, placer based on optimizing the power consumption of clock gating network is presented.

本论文研制之电路摆置器, 乃基于将用于低功耗设计下之闸控制时脉网路之功率消耗最佳化.

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.

Dredging is the most important placer-mining method today.

挖掘法现在是最重要的砂矿开采的方法.

Liaoning Xiuyan Nephrite Placer Deposit ( XNPD ) is a secondary deposit of primary nephrite ore.

辽宁岫岩软玉砂矿 ( 又称河磨玉矿 ) 是原生软玉矿的次生砂矿床.

The associated minerals are the important indicator of the genesis and enrichment of placer gold.

伴生矿物是砂金成因和富集规律的重要指示标志.

The fineness of placer gold in this district is apparently featured by inhomogeneity, inheritance and afterdeformation.

该区砂金成色具有明显的不均一性 、 继承性和后期改造性.

The operation practice indicated that the remining of placer gold in Laozuoshan Gold Mine was efficacious.

生产实践表明,采金船复采在老柞山金矿的应用是行之有效的.

Eraluating the mined area is one of effective and dependable ways for exploring placer gold.

指出以过采区为依据寻找砂金矿可靠性大,风险度小,是行之有效的途径之一.

Trial Drilling Results of YKS-30 Model Air Counter Circulation Placer Drill

YKS&30型空气反循环砂钻的初步试验获得可喜进展

The Development and Application of Wire-line Coring Tool for Placer Drill

砂钻绳索取心钻具的研制与应用

The preliminary study on the features of the placer-gold and associated mineral in Aitai mountains

阿尔泰山砂金及其伴生矿物特征的初步研究

Poland came from behind to beat Costa Rica 2-1 to finish third in Group A, and Paraguay upset Trinidad and Tobago 2-0 to be the third-placer of Group B.

波兰在2比1战胜哥斯达黎加后后来居上，最终在A组中排名第三。而巴拉圭则以2比0意外击败特立尼达和多巴哥，最终排名B组第三。

Reasonable prospecting method is a key to localizing and evaluating gold placer in selva.

合理的找矿方法是热带雨林地区砂金矿床定位评价的关键。

The wire-line coring tool of HSQ serial has kept up the technical features of conventional placer drills and derived the advanced structure from steel cable fishing tool for inner barrel.

HSQ系列绳索取心钻具，既保持了现用砂钻钻进的工艺特点，又发挥了钢绳打捞内管技术的方便性。