短語詞組短語heading crossing angle 航曏交叉角large heading misalignment angle 大方位失準角heading error angle 航曏誤差角Heading angle navigation law 前置角導引executed heading angle 實際操舵艏曏角excute heading angle 換舵首曏角heading angle guidance law 固定前置角制導律execute heading angle 操舵首曏角constant target -heading angle 恒定角度朝曏目標 返回 heading angle