“position indicating mark”的概念、定义、翻译、参考文献-科学参考

单词	position indicating mark
释义	position indicating mark Encyclopedia 工学水运交通指示释 position indicating mark示位标设在湖泊、水库、水网地区或其他宽阔水域与重要航道附近，标示岛屿、浅滩、礁石及通航河口等特定位置，供船舶定位或确定航向的水上助航标志，又称灯塔。在内河航道可以为各种形状的塔形体。塔身外涂有显明的颜色，便于船舶识别。
随便看	index of economic liberalization index of eigenvalues index of environmental pressure index of growth index of imprimitivity index of inertia index of irregularity index of morphological typology index of multiplicity index of next larger scale charts index of nilpotency index of nutritional quality index of polydispersity index of refraction index of relative nullity index of reliability index of road freight transportation quality index of road passenger transportation quality index of road transportation safety index of rotation index of routine analysis for atmospheric pollution index of simplicity index of social progress index of spatial agglomeration index of speciality

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。