- off-course indication
- 偏航: yaw; going off course; leewa ...
- 指示: indicate; point out instruct
- 偏航指示器: coruse deviation indicator; course deviation indicator (cdi); deflection indicator; deviometer; deviometre; drift indicator; yaw indicator; yaw meter
- 航向及偏航指示器: course and drift indicator
- 偏航指示器偏流計: drift indicator
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