1) visibility distance
前视距离
1.
Placement of roadside traffic signs based on visibility distance;
基于前视距离的路侧交通标志设置方法
2) ambient sight distance
前景视距
1.
In view of the respective defects of existing manual and automatic operating devices of external vehicle lamps,the headlamp dimmer controlled combinatively by manual & automatic complementary according to multi-information such as ambient sight distance,low-beam illuminated distance,stopping sight distance,braking,overtake,etc.
针对现有外部车灯手动和自动操控装置存在的诸多不足,研制了根据前景视距、近光照距、停车视距、制动和超车等多种信息进行综合控制的手动和自动互补式前照灯变光器。
3) forward setting distance
前冲距离
1.
The variation of counter-force and bearing force is discussed, the reasons of forward setting are obtained, the calculating formula about forward setting distance is deduced.
从烟囱施爆后做定轴转动的力学分析入手,结合爆破切口的断裂形式,讨论支反力的变化情况,得出了前冲的原因,并推导了前冲距离的计算公式。
4) anterior distance
前出距离
1.
On the base of the mathematical model of the anterior distance,it optimizes and disposes the early warning ability of the carrier helicopter through three aspects: they are early warning helicopter,enemy attacking and own warship defending.
在舰载直升机前出距离的数学模型基础上,从预警机本身因素、敌方攻击因素和我方编队防御因素这三个方面入手,对舰载直升机的对空预警性能进行优化配置,采用MATLAB数学工具得出计算结果,绘制性能匹配曲线(或曲面)并得出约束条件。
5) crossover distance
超前距离
6) Front distance
前沿距离
补充资料：明视距离
最适合正常眼细致观察物体又不易产生疲劳感觉的距离。一般人的明视距离为20～30厘米。在设计光学仪器时，目镜成像的位置一般规定为25厘米。放大镜和显微镜目镜的角放大率也是以像距为25厘米、物距接近焦距f来计算的。
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