1) Front sight
准星/前瞄准具
2) Foresight
[英]['fɔ:saɪt] [美]['fɔr'saɪt]
前瞄准具
3) ring and bead sight
圆环与准星瞄准具
4) sight bead
瞄准星
5) Sighting device
瞄准具
1.
The sighting device of seeing optical system has two kinds of situations which are the main image and the secondary image,the main image which is the indispensable sign of presenting the target,but the secondary image is not useful to the target.
视准式光学系统瞄准具的成像有主像和副像两种情形,主像是对目标瞄准的必要标志,副像则对目标的瞄准产生不良影响,为消除或减弱光学系统所成的副像对瞄准精度的影响,主要分析了光学系统中中心反射镜的反射和有无平行差时产生副像的原因。
6) sight
[英][saɪt] [美][saɪt]
瞄准具
1.
Aimed at the existing problem of a certain type of aircraft sight, a bomb performance improved equipment is developed for the ballistic trajectory windage on non-standard weather condition.
针对某型机瞄准具存在的问题,研制的轰炸性能改进装置对非标准气象条件弹道自动修正电路进行了改进。
2.
Considering the problems of the sight on a certain type of airplane, a device has been developed to improve bombing performance,of which the ballistic trajectory correcting circuit to windage on non stan dard weather condition is an important part.
非标准气象条件弹道自动修正电路是针对某型机瞄准具存在的问题所研制的轰炸性能改进装置的一个重要部分。
3.
According to their respective functions,the main transmission mechanisms of a gun sight are analysed as being made up of four mechanisms viz.
根据功用，将某型号瞄准具主传动机构简化成4个机构：航路角装定器、升降角装定器、速度装定器和斜距离装定器，并对它们进行了位置和精度分析。
补充资料：准星
①枪械瞄准装置的前方照准器。通常位于枪口上端，与表尺缺口相辅构成瞄准基线。有圆柱形、圆锥形、三角形和长方形等形状。通常枪械准星可调整，以便试枪矫正射击效果。②秤上的定盘星。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条