| 摘要 |
PROBLEM TO BE SOLVED: To surely investigate the truth in near future since the submarine submerged to ocean depths of 10,000 meters 50 years ago and the real water pressure in the ocean depths is different completely.SOLUTION: By perfectly applying water pressure resistant and waterproof work for ocean depths, there is nothing to be scared and even if a filled PET bottle is thrown into ocean depths of 10,000 meters, no event may occur. |
