请输入您要查询的字词:
单词
海区航道方位标
释义
海区航道方位标
Encyclopedia
工学
水运交通指示
释
sea area fairway bearing mark
海区航道方位标
设在以危险物或危险区为中心的北、东、南、西四个象限内,分别标示在该标的同名一侧为可航行水域的交通指示标。即真方位西北-东北,东北-东南,东南-西南,西南-西北,并对应所在象限命名为北方位标、东方位标、南方位标、西方位标。方位标也可设在航道的转弯、分支汇合处或浅滩的终端。
随便看
convex circled set
convex closed curve
convex closed set
convex closure
convex closure of a saddle function
convex closure of a saddle-function
convex closure of saddle function
convex combination
convex-compact mapping
convex-complex space
convex-concave
convex concave function
convex-concave function
convex-concave mapping
convex cone
convex constraint condition
convex cooperative game
convex core
convex curve
convex decomposition
convex domain
convex down
convex down curve
convex duality
convex equivalence relation
科学参考收录了854744条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。
Copyright © 2000-2023 Sciref.net All Rights Reserved
京ICP备2021023879号
更新时间:2025/7/2 23:36:37