“railway signal”的概念、定义、翻译、参考文献-科学参考

单词	railway signal
释义	railway signal Encyclopedia 工学〔铁路信号设备〕释 railway signal铁路信号机以臂板位置或色灯颜色、数目、排列等向行车或调车作业人员指示作业命令的信号设备。
随便看	centroid factor centroid hexagon centroid line centroid linkage centroid method centroid of an algebra centroid of a triangle centroid of stars centroid of volume centroid point centroid theorem Centro legume centromere centromere-kinetochore complex，CKC centromeric exchange centron Centro Nazionale di Adroterapia Oncologica centroplasm centro-projective centrosome centrosphere centrostigma centro-surface centrosymmetric centrosymmetric convex body

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。