The paper reports on a study of datum line s errors, in addition to comparing geodesic line with short range line while expanding various kinds of shell plates and analysis error incurring reasons and error s distribution law.
本文把不同外板展开方法的测地线和短程线进行比较，分析其误差产生的原因和分布规律，从而来研究外板展开准线的几何精度。
Methodology of project Baseline defination in Clean Development Mechanism;
清洁发展机制中项目基准线确定方法
Research on baseline setting methods of Clean Development Mechanism in cement industry;
清洁发展机制(CDM)基准线设置方法在水泥行业内的研究
This paper describes the methods for setting baselines for evaluating of electric power projects and case studies.
介绍国际上评估发电项目减少温室气体排放所用的基准线评估法及其应用案例。
Presently,it is mainly through human s observation for the road marking vehicle to spray marks along the datum line.
目前的道路划线车,主要通过人的视觉观测,从而操作划线车使其沿基准线喷涂标线,由于驾驶员的视觉疲劳容易出现划线车跑偏的现象。
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。
This paper introduces the arrangement of three - axis to the submarine periscope line of sight, which were existing elevation rotation axis, azimuth rotation axis and new adding rotation optical axis.
介绍了潜艇潜望镜瞄准线在高度俯仰与方位回转两轴稳定的基础上增加绕光轴旋转而成为三轴稳定的三轴排列方式,应用刚体的无限小转动理论用几何法推导了瞄准线三轴稳定的运动轨迹方程,在此基础上提出了实现瞄准线三轴稳定的控制方案。