under sea

同根派生

Oh, yes. I am reading the story on the Chinese porcelain found from wrecks deep under sea.
哦。是的。我在读有关深海里沉船中发现中国瓷器的报道。
Aiming at the difficulty of supporting soft rock wall under sea area, we studied the bolt grouting technique to solve this problem.
摘要针对龙口海域软岩巷道支护困难的问题，探讨了锚注支护技术在海域软岩巷道中的应用。
Favorable and unfavorable factors of mining under sea are analyzed in this paper after introducing the cause of selecting full-mechanized caving mining.
摘要介绍了龙口海域下开采的有利与不利因素，分析了海域下选择综放开采的原因；
As a practical use, the electromagnetic fields in different depth under sea water and in several thousands of kilometers from the source, excited by an ELF source due to heating ionosphere, are calculated.
作为应用 ,具体计算了电离层被加热产生的极低频源在几千公里范围水下不同深度远处接收场强的量级
We have found oil under the North Sea.
我们在北海发现了石油。