plugging with cement 注水泥
cement plugging 油井水泥封堵
superfine cement plugging 超细水泥封堵
The commission's 13 key points focused on tests done to check the cement used in the well, decisions made by BP when plugging the well and the actions of those at the company in the hours before the disaster aboard the Deepwater Horizon rig.
BBC: Oil spill: BP 'did not sacrifice safety to save money'
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