deep lead是什么意思

网络释义

用法例句

After the investigation and study on Alluvial Tin deposit in Changning Dayishan Mine,Conclude that its geologic setting mainly iles in its structure and land form a proper scale of Alluvial Tin deposit were found in the limestone solution cave around Dayishan granite body.

提出了在大义山花岗岩体外围灰岩溶洞发现了一定规模的砂锡矿床,并初步分析了形成原因。

Discovery of the Mayum placer gold deposit,Burang County,Tibet,and its significance;

西藏普兰县马攸木砂金矿床的发现及其意义

The oreprospecting model of synthetic information of placer gold deposits in Altay Region,Xinjiang;

阿勒泰地区砂金矿床综合信息找矿模型

Analysis on geological conditions of the mineralization of placer gold deposit in Chaihe River Valley;

柴河砂金矿床成矿地质条件分析