n.十米（公尺），缩写词为dam

The football field measures 100 decameters in length.
足球场的长度为100公亩。
The distance between the two villages is approximately 5 decameters.
两个村庄之间的距离大约为5公里。
The scientist noted that the asteroid's diameter was just under a decameter.
科学家记录到小行星的直径略小于1公里。
The hiking trail covers a distance of 3 decameters through the forest.
徒步旅行路线穿过森林，全长3公里。
The depth of the lake varies, reaching up to 3 decameters at its deepest point.
湖泊的深度不一，最深处可达3公里。
The new bridge spans a width of nearly 1 decameter over the river.
新建的大桥横跨河流，宽度接近1公里。
The agricultural land extends for several decameters along the riverbank.
农田沿着河岸延伸了几公里。
The ancient wall, though partially ruined, still stands tall for over 2 decameters.
尽管部分损毁，这段古墙仍屹立不倒，高度超过2公里。
The marathon race covers a total distance of 42.195 decameters.
马拉松比赛的总距离是42.195公里。
The solar panel farm covers an area of 10 decameters square.
太阳能板农场占地面积为10平方公里。