来自黄坤武的问题
【doublebottomtanksareinthespacebetweentheholdsandthebottomofthehullDoublebottomtanksareinthespacebetweentheholdsandthebottomofthehull】
doublebottomtanksareinthespacebetweentheholdsandthebottomofthehull
Doublebottomtanksareinthespacebetweentheholdsandthebottomofthehull

