Common repairs to hulls are steel renewals in a dry-dock and afloat, such as repairs of an indent caused by a collision with a jetty, steel renewals resulting from grab discharge ,local corrosion or from grounding.翻译为：常规的修理主要是钢材的更换，即可以在干船坞上，也可以在水上进行。比如说修理在靠码头时碰撞留下的凹痕，装卸货物时抓斗损坏的钢板，局部腐蚀或是触礁引起的破损等。
A、正确
B、错误