world tonnage的意思|示意

In several parts of the world, more than 50% in tonnage of all antimicrobial production is used in food-producing animals.

在世界不少地区，抗菌剂产量的总吨数中，有50%以上是用于产肉动物。

In 1880 its exports of manufactured goods accounted for 40% of the global total, and by 1890 it owned more shipping tonnage than the rest of the world put together.

1880年，出口的工业产品占了全世界总量的40%；到了1890年，其航运吨位超过了世界上其他国家的总和。

With the increase of the tonnage and power of ocean-going ship, more and more attentions are paid to the match among vessel, main engine and propeller by shipping and shipbuilding world.

随着海洋运输船舶的吨位和功率不断增长，船舶推进系统中船机桨配合研究越来越受到世界造船业和航运业的重视，成为船舶科技领域的重要课题之一。