n. 1 single line or narrow beam of light from a small or distant source. 2 straight line in which radiation travels to a given point. 3 (in pl.) radiation of a specified type (X-rays). 4 trace or beginning of an enlightening or cheering influence (ray of hope). 5 any of a set of radiating lines, parts, or things. 6 marginal floret of a composite flower,exempli gratia (например) a daisy. [Latin *radius]
... Light rays parallel totheplane ofthepicture Often , tosimplify construction , thedirection ofthelight rays .ischosen parallel totheplane ofthepicture Inthiscase , theprospects forthehorizontal projections of.thelight rays ... (Descriptive Geometry and Engineering Graphics)
... withtheplanes oftheprojections P1 , P.2 andP3 oftheleft coordinate system Suchadirection oflight rays corresponds tothedirection .ofthesun 'srays atmidday inthemiddle .latitudes ofour country andisconsidered ... ... relief andtheconfiguration of.abuilding orstructure inaxonometry , both standard andarbitrary directions .oflight rays areused ... (Descriptive Geometry and Engineering Graphics)
... oflight rays inperspective isdetermined by.two geometrical parameters : α - theangle ofinclination ofthelight rays to.thesubject plane P1 b - theangle ofinclination ofthehorizontal projections of.thelight rays tothepicture ... ... ofthepicture atthepoint FS.1 (thehorizontal projection ofthevanishing point ofthehorizontal .projections ofthelight rays ).From thispoint , draw aprojection line totheintersection .withthehorizon line Theresulting point ... (Descriptive Geometry and Engineering Graphics)
... of the emitted electrons , as in the usual tetrode ., is deposited on the second grid , but the current of.the second grid of ray tetrodes is significantly lower than in. conventional tetrodes and pentodes As a result , the efficiency ... ... ., their winding should be relatively rare , so the steepness of.control along the first grid in the ray tetrodes is small . The relatively large distance between the screening grid and the. anode ... (Radio tubes and ion devices)
... withearth stations throughout thecoverage .area , itisallocated frequencies thatdo notintersect with.other rays ofthissatellite rays ofthewestern andeastern hemispheres - theserays are.polarized inplane A, andthesame frequency ... ... are.polarized inplane A, andthesame frequency range is.used inthewestern andeastern hemispheres zone rays arepolarized intheBplane (perpendicular to.A) anduse thesame frequencies asthehemisphere rays Thus , anearth ... (Devices for the reception and processing of radio signals, Transmission, reception and processing of signals)
... .constructing shadows inorthogonal andaxonometric projections , except thatin.thelong run , ingeneral , thelight rays andtheirprojections .aredirected tothevanishing points oftherays F.Sandtheirprojections FS1 Thevanishing point ofthehorizontal ... ... (asa.vanishing point ofstraight lines located intheobject plane ).Thevanishing points oflight rays andtheirhorizontal projections .lie onthesame perpendicular tothehorizon line ... (Descriptive Geometry and Engineering Graphics)
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