Free field是什么意思

网络释义

用法例句

Aims at the problem that laser fuze take targets from the complicated background while the tactics air to surface missile do battle,brings out a method to recognize targets using laser ranging,gives out the criterion and extent of reorganization,and analyses and illuminates with simulation.

针对战术空地导弹激光引信复杂的目标背景,提出了一种利用激光测距识别目标的方法,给出了识别判据和识别区域。

In this paper,a summary of precision analysis method for guide system of air to surface missile is introduced.

制导精度分析是空地导弹制导控制系统设计过程中必须考虑的关键因素之一。

Based on the analysis of a 500 kV overhead ground wire broken and falling down accident,this paper finds the basic cause and proposes the corresponding preventives and treatment.

通过对一起500 kV架空地线断裂落地的事故进行原因分析,找出了架空地线断落的根本原因,并提出了相应的防治措施和建议。

Working frequency current division factor of overhead ground wire is an important parameter directly related to equipment and personnel safety and project investments.

架空地线工频分流系数是进行接地设计、计算的重要参数,它直接关系到设备、人身安全和工程投资,因而应尽可能准确确定。

Research on accuracy assessment for air-to-ground missile based simulation technology;

应用仿真技术的空地导弹命中精度评定

Due to the difficulty to repeat fire tests of air-to-air missile and air-to-ground missile in a same launching condition,group test data are unavailable.

由于空空和空地导弹难以在相同发射条件下进行重复射击试验,因而无法得到成组试验数据。

In order to evaluate weapon system operational effectiveness in general,the necessity of developing an air-to-ground missile countermine simulation system was proposed.

从武器系统作战效能评估的角度提出研发空地导弹攻防对抗仿真系统的必要性,对空地导弹攻防对抗仿真系统进行了系统分析,探讨了基于UML的仿真系统建模分析方法,给出仿真系统的仿真概念模型和具体分析实例。

In order to study the problem of the precision guidance with multiple constraints in the modern air-to-surface weapon.

针对现代空地武器多约束、高精度制导的基本需求,本文将空地武器三维运动分解成俯仰平面和转弯平面两个平面运动,以此为基础分别设计制导律。