Ocean shipping是什么意思?

语句for（；1 ；)有什么问题？它是什么意思？

语句for（；1 ；)有什么问题？它是什么意思？

A new ocean going ship of 2000 gross tons having an inoperative oily water separator may dispose of its bilge slops by _____.

执行回转是什么意思？申请执行回转需要什么条件？

If you travel by ship across the Pacific Ocean you cross the International line.翻译

砌筑砂浆的强度是什么意思?有什么等级?