等深线（depth contour ）是指在海洋或湖泊中，相同深度的各点连接成封闭曲线，按比例缩小后垂直投影到平面上，所形成的曲线称为等深线。在同一条等深线上个点的深度相等。
海底等深线 submarine contour
等深线图 batymetric chart ; isobathic chart ; contoured bathymetric map ; bathymetric map
等深线沉积物 contourite
古等深线图 paleobathymetric map
基底等深线 basement contour
等深线海图 depth contour chart ; bathymetric map ; bathymetric chart
等深线海底地形图 contoured bathymetric chart
等深线等深线 isobath
海等深线 marine contour line
Automatic interpolation of charted depth annotated point, automatic selection of marine topography feature point and automatic build of bathymetric contour come true by using history data.4.
3．利用历史资料实现了海域水深注记点的自动内插、海底地形特征点的自动选取和等深线的自动生成。
参考来源 - 海岸带图数据管理与编辑系统的研究与实践·2,447,543篇论文数据，部分数据来源于NoteExpress
三个海盆都被1900米的等深线所圈闭。
通过追踪安全等深线和处理障碍区，得到可航渡区域。
Safety contours were traced, obstacle areas were computed, and navigable areas were acquired.
强烈地震的断层走向、震中迁移方向与软流圈顶面等深线轴向方向一致。
The strike of faults along which strong earthquakes occurred and direction of migration of epicenters are coincident with the orientation of isobaths of the top surface of the asthenosphere.
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