1. In each category, the order of placement was based on tonnages.
2. tonnages的解释
2. Zhu estimated that China's total shipbuilding capacity would grow to more than 30 million tonnages annually by 2010.
3. tonnages的意思
3. The producing capacity of ethylene will exceed 9 million tons and two processing bases with over one million tonnages will be set up in Shanghai.
4. Li predicted global demand for ships would remain at high levels, of around 60 million tonnages annually in the years leading up to 2010.