释义 |
reference mark
ref′erence mark` n. any of various symbols, as an asterisk (*), dagger (†), or superscript number, used to direct a reader to further information in a footnote, bibliography, or other text. [1855–60]
reference mark
reference mark[′ref·rəns ‚märk] (electronics) One of the marks used in a design of a printed circuit, giving scale dimensions and indicating the edges of the circuit board. reference mark refectory A supplementary mark of permanent character close to a survey station, to |