“whistle board”的概念、定义、翻译、参考文献-科学参考

单词	whistle board
释义	whistle board Encyclopedia 工学水运交通指示释 whistle board鸣笛标设在通航控制河段或上、下行船舶不能相互通视的急转弯的上下游两端河岸上，指示船舶鸣笛的水上助航标志。
随便看	substitute rate of wage substitute search substitute species substitute teacher substitution substitutional alloy substitutional atom substitutional defect substitutional disorder substitutional impurity substitutional interpretation of quantifiers substitutional solid solution substitution axiom substitution cipher substitution conduction substitution conductivity substitution elasticity of factor substitution equation substitution formula substitution group substitution lattice substitution map substitution mapping substitution matrix substitution method

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。