热带，热带载重线区；

1. 热带：tropical year 回归年 ,分至年 | tropical zone 热带 | tropopanse 对流层顶

2. 热带区域：俯仰力矩 trimming moment | 热带区域 tropical zone | 筒[形活]塞引擎 trunk engine

3. danci.edu.pub

3. 热带载重线区：tropical zone 热带区带 | tropical zone 热带载重线区 | tropical 酷热的

4. 热带区带：tropical zone load line mark 热带载重线 | tropical zone 热带区带 | tropical zone 热带载重线区

1. the part of the Earth''s surface between the Tropic of Cancer and the Tropic of Capricorn
    characterized by a hot climate

    Synonym: Torrid Zonetropics