短語詞組短語Optimum line length of sight 最佳視線長度target line -of sight rotating rate 目標(biāo)視線轉(zhuǎn)率basic line of sight 基準(zhǔn)視線colineated line of sight 瞄準(zhǔn)重合線horizontal line of sight 水平視線vertical line of sight 垂直瞄準(zhǔn)線;垂直線no line of sight 無視線;非視線關(guān)系line of sight method 視線法;視線方法 返回 line of sight