log-ship 手用测程器
扇形计程器
Log-ship \Log"-ship\, n. (Naut.)
A part of the log. See {Log-chip}, and 2d {Log}, n., 2.
Log-chip \Log"-chip`\, n. (Naut.)
A thin, flat piece of board in the form of a quadrant of a
circle attached to the log line; -- called also {log-ship}.
See 2d {Log}, n., 2.