erathem

基本解釋

Shagou deposit mainly lies in the metamorphic rock of Taihua Group,Archaeozoic erathem.
本礦床主要的賦礦地層為新太古界太華群高級(jí)變質(zhì)巖。
The Yangjin'gou scheelite deposit occurs in Wudaogou group of lower palaeozoic Erathem.
楊金溝白鎢礦床產(chǎn)于下古生界五道溝群中。
Jiaodong Group ofthe Archean Erathem was the source bed of the gold deposits of the area.
上太古界膠東群是本區(qū)金礦床主要礦源層；巖漿活動(dòng)是成礦物質(zhì)的載體；
The oil resource which formed in Mesozoic and Cenozozic erathem accounts for about 87 percent.
石油資源主要分布于中、新生界，約占87%25，天然氣資源主要分布于古生界，約占51%25；
Gas reservoirs of upper palaeozoic erathem contains different gas layers,it can be produced by separate layer fracturing.
為解決多油層分層壓裂作業(yè)管柱一旦砂埋封隔器難以解封的難題,研制了多功能分層壓裂開關(guān)。