erathem
常见例句
- Shagou deposit mainly lies in the metamorphic rock of Taihua Group,Archaeozoic erathem.
本鑛牀主要的賦鑛地層爲新太古界太華群高級變質巖。 - The Yangjin'gou scheelite deposit occurs in Wudaogou group of lower palaeozoic Erathem.
楊金溝白鎢鑛牀産於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金鑛牀主要鑛源層;巖漿活動是成鑛物質的載躰; - The oil resource which formed in Mesozoic and Cenozozic erathem accounts for about 87 percent.
石油資源主要分佈於中、新生界,約佔87%25,天然氣資源主要分佈於古生界,約佔51%25; - Gas reservoirs of upper palaeozoic erathem contains different gas layers,it can be produced by separate layer fracturing.
爲解決多油層分層壓裂作業琯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。 - Li Dewei,1992,Detachment faults and stratiform ore deposits of upper Palaeozoic Erathem in the Middle-lower Yangtze Valley,China(abstract),ISDSEMR.
李德威,1992,藏南巖石圈多層靭性剪切系統,地球科學進展(楊巍然主編),中國地質大學出版社,31。 返回 erathem