water line

water-line的词性：
n.Abbr. wl, WL（名词）缩写 wl， WL

1. Nautical
【航海】

2. The line on the hull of a ship to which the surface of the water rises.
吃水线：水表面所达到的船壳上的线

3. Any of several lines parallel to this line, marked on the hull of a ship, and indicating the depth to which the ship sinks under various loads.
船的水平线：几条平行于吃水线的线条之任一条，刻划在船壳上，表明承载不同贷物时船下到的深度

4. A line or stain, as one left on a sea wall, indicating the height to which water has risen or may rise; a watermark.
海迹线：海堤上留下的线或标记，表明水曾经达到或可能达到的高度；水迹