如果钢比水重，为什么船能在海上漂浮？
If steel is heavier than water, why are ships able to float on the sea?
如果钢比水重，为什么船能在海上漂起来。
If steel is heavier than water, why are ships able to float on the sea.
与常规柴油不同，船用柴油包含一些重质燃料油。
Marine diesel oil contains some heavy fuel oil, unlike regular diesels.
与常规柴油不同，船用柴油包含一些重质燃料油。
Marine diesel oil contains some heavy fuel oil, unlike regular diesels.
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