nuclear submarines
military submarines
submarine warfare
attack submarines
unmanned submarines
A: Did you see the news about the new submarines?
A：你看到关于新型潜水艇的新闻了吗？
B: Yes, they are equipped with advanced technology.
B：是的，它们配备了先进的技术。
1) 潜水艇
2) 潜水器
3) 水下航行器
1. 潜水艇
noun
1. vessels capable of being entirely or partially submerged in water for navigation.