Countries that manage Antarctica are calling for limits on the number of tourist ships, for fortified hulls that can withstand sea ice and for a ban on the use of so-called heavy oils.
各个国家对于南极洲要求对于游览船只的限制采取了措施，一个是对抗海冰的船体外壳加固，另一个是禁止重油船。
Both ships were strengthened after the Titanic disaster with double hulls and taller bulkheads, but their rivets were never changed.
泰坦尼克号沉没之后，奥林匹克号和不列颠尼克号被加厚了船板并升高了防水隔舱壁。但他们的铆钉被没有被更换。
Surveys machines and hulls of ships to ensure they are constructed, equipped and maintained according to safety standards, rules and regulations laid down by marine authorities.
船舶检验员根据海事机关设定的安全标准及条例，检验轮船设备以确保装备完整。
Double hulls or double bottoms have been required in all passenger ships for decades as part of the Safety of Life At Sea or SOLAS Convention.
双底双壳，或已在所有的客运船舶所需的几十年的一部分海上人命安全公约或国际海上人命安全。
Double hulls or double bottoms have been required in all passenger ships for decades as part of the Safety of Life At Sea or SOLAS Convention.
双底双壳，或已在所有的客运船舶所需的几十年的一部分海上人命安全公约或国际海上人命安全。
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