{Epsilon} CrA components radial & orbital velocity

High-resolution spectroscopic observations of the W UMa-type binary {Epsilon}CrA obtained as a time-monitoring sequence on four full and four partial nights within two weeks...针对W UMa型双星（W UMa-type binary）ε CrA（Epsilon CrA）开展的高分辨率光谱观测，采用时间监测序列的观测策略，于两周内完成了四个完整观测夜与四个部分观测夜的观测。