reticle
3.Finally,the simulation method of public symbol and the aiming reticle in the HUD based on Visual C++ is discussed.
4.For holding strand tapered anchorage of steel cable prestressing tendon in tensioning construction, the points for tensioning order, tensioning equipments, the problem of beam crack, steel cable shape reticle, broken reticle, value of elongation of prestressing tendon abnormality in tensioning construction are presented, the causes are analyzed, and suggestions and solutions are given.
5.This paper presents the basic construction and movement rules of the coordinator gyrorotor with reticle of Archimedes spiral reticule pattern, Also, it explains the principles and methods of dynamical balance to damp the vibration and forced nutation.
