“ballast track”的概念、定义、翻译、参考文献-科学参考

单词	ballast track
释义	ballast track Encyclopedia 工学［轨道型式］释 ballast track有砟轨道由钢轨、扣件、轨枕和散粒体碎石（或卵石、砂）道床、道岔及轨道加强设备组成的铁路轨道。是铁路上应用最早、使用范围最广的轨道结构形式，有较丰富的使用经验，成套的线路大修、维修机械和施工工艺。
随便看	gas production rate gas productivity index gas property parameter in high pressure gas pseudo pressure gas purification method gas purification process gas quality standard for transmission pipeline gas radiative properties gas reaction system gas recirculation fan gas recovery by liquid drainage gas regulator station gas reservoir gas reservoir development pattern gas reservoir engineering gas reservoir（well） allocation gas retention age gas retort carbon gas-rich asteroid gas-rich meteorite gas-rich satellite gas safety device gas scintillation proportional counter gas scintillation proportional detector gas scintillator

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。