田中说，按照东京电力公司自己的数据，地震后不久，紧急水循环装置就立即自动起动了。
Tanaka said that according to TEPCO's own data, emergency water-circulation equipment started up automatically shortly after the quake.
每个公司都控制着油田中一定土地上的开采权，并由股份的比例把资金投入到管道建设中。
Each company controlled oil rights to particular shares of land in the oil fields and paid into the pipeline construction fund according to the size of its holdings.
美国的油田服务公司是水平钻孔技术的先驱，水平钻孔技术用来从美国的大型油田中提炼页岩气（通常石油和天燃气通过直井提炼而出）。
Oil-services firms there pioneered the technique of horizontal drilling, which is used to extract shale gas from America’s vast fields (conventional oil and gas are extracted using vertical wells).
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