tonnage

n.吨位；吨数

The ship has a tonnage of twenty thousand. 这艘船的吨位是2万吨。

This landing vessel has the largest tonnage in our country. 这是我国目前最大吨位的登陆舰。

Usually the dues are calculatedon the registered tonnage of the ship. 通常港口税是以船只的注册吨位计算的。