The meaning of PRINCIPAL AXIS is the line with respect to which a spherical mirror or lens system is symmetrical and which passes through both the center of the surfaces and their centers of curvature.
principal axis n 1.(General Physics) the line passing through the optical centre and centres of curvature of the faces of a lens or a curved mirror 2.(General Physics) any of three mutually perpendicular axes about which the moment of inertia of a body is maximum ...
principal axis principal boy principal building Principal challenge principal diagonal principal focus principal investigator principal items principal nursing officer Principal of a quadric principal officer principal operational interest principal parallel
Each individual mirror has a secondary axis enabling them to turn slowly to follow elevation of the sun. A heliostat comprises a frame with a single axis of rotation in a chassis and driven by a motor and clutch assembly from an error signal. The individual mirrors are attached by crank ...
areflection mirror for the neck inspection 48735 反射镜子为脖子检查48735[translate] aanother day 另一天[translate] aIs her birthday in june? 她是否是生日在6月?[translate] abusy counting parts of machines,putting them boxes and carrying them .to a storehouse 机器的繁忙的计数的零件,投入他们箱子...
In the presence of two or more non-orthogonal sets of vertical fractures, the symmetry of the medium may be approximated as monoclinic with a horizontal plane of mirror symmetry if, in the absence of fractures, the rock is transversely isotropic (TI) with the symmetry axis perpendicular to ...
Principal Component Analysis (PCA) is a multivariate analysis that reduces the complexity of datasets while preserving data covariance. The outcome can be visualized on colorful scatterplots, ideally with only a minimal loss of information. PCA applicati
of nano-twin with a mirror-symmetry at an angle of ~70° with respect to the twinning plane.dTEM image along [\(\bar{1}\)12] zone axis for HEA-M. Clear extra diffuse discs at the ½{311} locations in the corresponding EDP (right panel) are indicated by green arrows.eHRTEM ...
11 and 12, a beam emitted from a light source device 211 is bent by a returning mirror 217. In the main scanning section, the beam is incident on the polygon mirror 215 from a direction substantially corresponding to the optical axis of the scanning optical system 216 (front incidence). ...
and is obliquely incident on a deflecting surface of the deflecting device in a sub-scanning section, wherein both the principal ray of the incident beam and the principal ray of the scanning beam travels on the opposite side with each other with respect to the optical axis of all of the ...