这艘货轮的载重量为两万吨。

The freighter has a ___tonnage capacity of 20,000 tons.

这艘货轮的载重量达到了50,000吨。

The cargo ship has a ___tonnage of 50,000 tons.

这艘货轮需要支付高额的吨位税才能进入港口。

The cargo ship must pay a high ___tonnage tax to enter the harbor.