... 瞄准点：aiming mark[point] 瞄准线：line of sight; sighting line 基线：base line ...
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Sighting line（照准线）：有时也可称为视力线，主要指在找方位角时的假想线。 Skirt（裙环缘）：找出绕过山体或障碍物的路径。
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照准线 aiming line; collimation axis; pointing line; sight line; sighting line; transit line 照准仪 ali dada; alidada; alidades; alidate; auto; cross staff; diopter; sight alidade .
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sighting line method [测] 瞄直法
height of sighting line 视线高度
zero sighting line 零位瞄准线
inclination of sighting line 视线倾斜
stabilization of sighting line 瞄准线稳定
In modern photoelectric fire-control and guidance systems, the sighting line is often required to be stabilized to reduced the effect of carrier turbulence.
在现代光电火控、制导系统中，为了提高命中精度常常要求对瞄准线进行稳定，减小载体扰动的影响。
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