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。

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.

youdao

主要产品：汽车、拖拉机、大马力柴油机、施工机械、重油船用柴油机用的空气、机油、燃油三大系列的滤清器、滤芯。

Main products: filters and filter elements for air engine oil and fuel filtering. used in automobiles. tractors. powerful diesel engines. construction machines. and oil tankers etc.

youdao

主要产品：汽车、拖拉机、大马力柴油机、施工机械、重油船用柴油机用的空气、机油、燃油三大系列的滤清器、滤芯。

Main products: filters and filter elements for air engine oil and fuel filtering. used in automobiles. tractors. powerful diesel engine s. construction machines. and oil tankers etc.

youdao