“seven-thirds rule”的概念、定义、翻译、参考文献-科学参考

单词	seven-thirds rule
释义	seven-thirds rule [¦sev·ǝn `thǝrdz ´rül] ^NAVIGATION A thumb rule which states that the approximate distance to an object broad on the beam equals seven-thirds of the distance traveled by a craft while the relative bearing (right or left) changes from 22.5° to 26.5°, 67.5° to 90°, 90° to 112.5°, or 153.5° to 157.5°, neglecting current and wind.
随便看	fixed-bias transistor circuit fixed-block fixed bridge fixed capacitor fixed carbon fixed-charge problem fixed contact fixed cost fixed-cycle operation fixed disk fixed echo fixed-electrode method fixed emplacement fixed end fixed-end beam fixed-end column fixed end moment fixed-feed grinding fixed field fixed-field accelerator fixed-field method fixed fin fixed-focus lens fixed form coding fixed gun

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