Its drilling system uses a 380-ton protective casing over the wellhead that is about the size of a six-story office building.
英
美
- 它的钻探系统采用了重380吨、约六层办公大楼大小的保护罩（防爆装置）来保护井口。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
