ballast-roller
基本解释
- 道碴碾压机
英汉例句
- Pig iron used as permanent ballast.
压载铁做为永久性压舱物的生铁 - The ship was furnished with ballast.
船上装了压舱物。 - The ride on the roller coaster dizzied us.
乘坐云霄飞车使我们头晕。 - May I borrow your roller skates?
我可以借你的旱冰鞋吗？ - The ballast placed in the ship can keep the ship steady.
放在船上的压舱物可以保持船的平稳。