subsea wellhead

例句：

1. 1.The subsea wellhead is a crucial part of the oil and gas exploration process.
   海底井口是石油和天然气勘探过程中至关重要的一部分。
2. 2.The subsea wellhead technology has greatly improved the efficiency of oil extraction.
   海底井口技术大大提高了石油提取的效率。
3. 3. The subsea wellhead design requires special consideration to ensure safety during drilling operations.
   海底井口设计需要特殊考虑，以确保钻井作业的安全性。