耐压水密海底重型动力单元的英文

undersea heavy power unit

• 耐:    be able to bear or ...
• 压水:    pressurized-water
• 密:    secret
• 海底:    the bottom of the ...
• 重型:    heavy; heavy type
• 动力:    motive power; powe ...
• 单元:    unit; unit element ...