“ballastless”的概念、定义、翻译、参考文献-科学参考

单词	ballastless
释义	ballastless Encyclopedia 工学道床结构释 ballastless有砟道床通常由具有一定粒径、级配和强度的硬质碎石堆集而成，碎石之间存在着空隙和摩擦力，使得轨道具有一定弹性的道床。
随便看	projective object of a category projective parameter projective pencil of lines projective plane projective plane crossing number projective plane curve projective plane dissection projective point projective point ranges projective principal normal projective product projective property projective quadric projective relation projective representation projective resolution projective scale projective scaling method projective scheme projective second-order curve projective set projective space projective space over a scheme projective special linear group projective special orthogonal group

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。