straightness of line of sight

用法例句

First,the control goal of maneuvering plane that the maneuvering plane and the aiming plane should meet or reverse is introduced.

首先介绍了机动平面的控制目标是使得机动平面与瞄准平面重合或反向重合,然后推导了机动平面与瞄准平面的夹角,进而得到机动平面与瞄准平面重合的充要条件,给出了保证机动平面与瞄准平面重合、反向重合的控制指令,最后进行了数值仿真。

The aiming line s stable precision of fire control system directly influence first round hit probability and fire reac-tion time.

火控系统瞄准线的稳像精度直接影响火炮的首发命中率和射击反应时间,必须对其稳像精度进行测量。

optical eye level finder

光学直视水平瞄准器

adjust the line of sight of (an optical instrument).

调整（光学仪器的）瞄准线。

either of two fine mutually perpendicular lines that cross in the focus plane of an optical instrument and are use for sighting or calibration.

相交在一台光学仪器焦距平面的两条相互垂直的直线中的任何一条，用来瞄准或者校准。

To adjust the line of sight of(an optical device).

校准调整光学仪器瞄准器

Research on the Optical System of Avionic HMS/HMD;

机载头盔瞄准/显示器光学系统的研究

synchronous optical bombsight

同步光学轰炸瞄准具

A member of a naval gun crew who trains cannons horizontally.

方向瞄准手水平瞄准大炮的海军炮组成员

a sight used for aiming a gun.

用来瞄准枪的瞄准器。

The standard sighting equipment includes a non-magnifying collimating sight with "ring and dot" illuminated aiming reticule.

标准瞄准设备包括一个非直放大在望"光环和斑点"瞄准发亮镜头.

transmitter collimating optics

发射器准直光学装置

universal autocollimator

通用自动平行光管[瞄直仪]

Controller Design of a Airborne Electro-Optical Scanning Platform

一种机载光电跟瞄平台的控制器设计

diffraction optics head-up bisplay

衍射光学平视显示器

adjust the rear mirror, the focus of a camera, the sights of a gun

调准后视镜、 照相机的焦距、 枪炮的瞄准器

The archer holds the bow in his bow arm and draws back the target arrow at the anchor point with his drawing hand. He looks along the bow sight then releases the arrow at the target.

箭手用执弓臂握住弓，然后用拉弦手向后拉弓弦，直到满弓点，注视瞄准器然后射靶。

This includes a laser rangefinder coupled to a ballistic computer linked to the sights to ensure that the user aims the weapon accurately.

这包括一个与视线关联确保用户将武器正确瞄准目标并跟弹道计算机配对的激光测距仪。

cross hair or crosshair: Either of two fine strands of wire crossed in the focus of the eyepiece of an optical instrument and used as a calibration or sighting reference.

"十字丝:呈十字形交叉于光学仪器的目镜焦点上的两根细丝之一,用于校准或瞄准参考."

The gunsight has an infrared lens for night vision.

射击瞄准器装有用于夜间视力的红外线镜头。