true heading meaning in English

真船首向真首向
真航向
真艏向

" a perfect example of a true head and expression of a true mastino . this is my model , what i mean when i say that now we have replaced the real headtype with a new curios form very different from the original one !
头脸完美无缺,简直就是真正意义上的纽的样版.它就是模特儿,展示了具有原始美的,复古的,新的头形,取代了我们现有纽的头形
The method to correct the declination error of uav geomagnetic heading with gps and igrf is proposed , by means of which the true heading of the craft can be obtained with magnetic sensor in global scope
提出了基于gps ( globalpositionsystem )和igrf ( internationalgeomagneticreferencefield )的无人机磁航向地磁偏角修正方案，使无人机能够在全球范围内利用磁传感器获得子午线航向。