placer造句

• 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。
• Gold and other heavy mineral placers are notable examples of lag deposits, but gravel and boulder bars are more common .
  金和其它重矿沙虽是蚀余沉积物中值得注意的例子，然而卵石和顽石沙洲都是比较普遍的。
• Figure 16-20 shows the good correlation observed between the magnetic field and the gold values over a muck-covered placer in this area .
  图16-20表明了此地区腐殖土覆盖下砂积矿床上面的磁场和含金量之间的良好对比关系。
• Dredging technology and equipment for thailand placer
  泰国砂矿的船采工艺及设备
• Study on hydrochemical mineralization factor of gold placer
  砂金水化学成矿因素探讨
• River placers , river quarry , acquisitions and marketing
  河砂矿、河石矿、收购和销售。
• A place where a placer deposit is washed to extract its mineral content
  砂矿开采地一个用来清洗出有用矿物的砂矿开采地
• Automatic detonator placer
  雷管自动安置机
• Double pipe hammering with inside pipe sampling technology and operation for placer drilling
  砂钻的双管冲击内管取心工艺
• High - level placers
  高级丘漂砂矿
• Roseville is located in placer county and is nearly equidistant from the sierra nevadas and the pacific coast
  罗斯维尔位于普莱瑟郡，距离塞拉利昂内华达州和太平洋海岸几乎相同。
• Figure 16 - 20 shows the good correlation observed between the magnetic field and the gold values over a muck - covered placer in this area
  图16 - 20表明了此地区腐殖土覆盖下砂积矿床上面的磁场和含金量之间的良好对比关系。
• Wudi has three world - rare shell placer deposit belts . stretching a total distance of 56 kilometers , these deposits have total reserves of 360 million tons
  无棣县拥有3条长56公里，总地质储量3 . 6亿吨世界罕见的贝壳沙矿带，具有很高的开采利用价值。
• The authors introduced the establishment of the placer data management information system ( mis ) , its aims , structures and its various function
  摘要本文以“湖北省重砂数据库管理信息系统”的建立为基础，介绍了该系统的开发目的、数据库结构、系统设计和系统使用功能。
• Placer abnormal of volcanic lithoclast at longjingjie in kaili of guizhou locates in regional shidongkou deep and major fault nearby , abnormal materials that are obsidian lithoclast and volcanic glass
  贵州凯里龙井街火山岩屑重砂异常位于区域性施洞口深大断裂近旁，异常物质为黑曜岩屑及火山玻璃。
• " dug jade " ing , this exploitation and d s placer means have already stopped , only while quarrying and drawing gold dust , electing the jade one from the gravel that is dug out , in passing , output is very few
  “挖玉”这一开采和阗砂矿的手段已经停止，只在采掏砂金的同时，从挖出的砾石中顺带选出玉块，产量微乎其微。
• Beneath the relic sand of the outer shelf there is high grade of valuable heavy mineral sand ( for example ilmenite ) reaching the ii anomaly order of marine placers and it is of potential resource prospects
  通过碎屑矿物判断，原岩应是中酸性岩浆岩和浅变质岩类。钛铁矿等有用矿物在细砂层位中出现较厚的砂矿异常，显示一定的浅海砂矿资源潜力。
• There are three genetic types of mineral deposits in the beiya ore district : cu - au polymetallic deposits related to alkaline porphyries , comprising porphyritic cu - au deposits and polymetallic skarn deposits related to quartz - albite porphyry and quartz - k - feldspar porphyry ; fe - au deposits related to gabbro or basalt magma , consisting of magmatic fe - au deposits and sedimentary polymetallic deposits formed in caves and lakes ; and palaeo - placers formed at the weathering surface , in lakes and in karsts
  北衙金矿有3种成因不同的矿床：与碱性斑岩有关的铜金多金属矿，包括与石英钠长斑岩和石英正长斑岩有关的斑岩型铜金矿床和矽卡岩型多金属矿床；与辉长玄武岩浆有关的铁金矿床，包括熔浆型铁金矿床和喷流沉积型多金属矿床，后者又有洞穴和湖相沉积环境之分；及古砂矿，有古风化壳型砂矿、河湖相古砂矿和洞穴沉积古砂矿。
• Based on a study of statistics of gold geochemical parameters and an analysis of distributiom of geochemical and placer anomalies in eastern shandong and jiaolei basin , this paper has probed into gold - rich and gold - bearing strata in jiaolei basin and pointed out gold - hunting prospects and ore - prospecting targets in this basin
  摘要通过对鲁东地区及胶莱盆地金地球化学参数统计结果的研究和对地球化学异常、重砂异常分布规律的分析，探讨了胶莱盆地富金及赋金岩层，指出了胶莱盆地的找金前景及找矿方向。