Economic data was soft early in the week though micro news for oil continued to be bullish.
本周早期经济数据疲软，但宏观层面的消息继续看涨石油。
These can be skimmed, left to evaporate, or treated with biological agents like fertilisers, which promote the growth of micro-organisms that biodegrade oil.
这些油污可撇除，蒸发或作为可降解油污微生物的肥料。
The model consists of perforation, wellbore, cement casing, oil layer, micro-annulus and transverse fracture.
模型中包括射孔孔眼、套管、水泥环、油层、微环隙和横向裂缝。
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