GNSS RECEIVER UNITmanufacturerThe customer is supremeitwillmakeyourequipmentefficiencyisgreatlyreduced,sceneryphotographyinpursuitofthedepthoffield,apertureoftenneedtof/11evensmaller,sothatwhenthelightisabitpoor,especiallyforlandscapephotographycommonlyusedinthetelephotolenses,withoutatripod,isbeingdisqualifiedfromthecontest. Eveninthesunnylightconditions,alsonotusealensfocallengthofreciprocalvalueabovetheshuttertime,canguaranteethesharpnessofthehandheldphotography.

Varioustemporarysituationintheenvironmentandcanmakeyourhandheldcameracompromised:thestabilityoftheeverchangingwind,therainfalling,pot-holedroads,bustlingtourists,andweight-bearingmarching,pantingofthephotographerhimself,willletyoufeelthenecessityofatripod"protect". What'smore,someonedidtest:fora105mmlens,evenunderthe1/125secondsshuttertime,usethetripodanddonotuseatripod,

Tianchi(sea)ontheundersideofdrawhasaredline,knownasthebottomline,onthenorthsidetherearetworeddots,usedtomakereferstothenortherntipofneedleandbottomline. Moderncompasswithreticle,atthebottomofthetopofthegraticule,respectively,withthesoutheastnorthwest,whenusing,shouldmakereferstothenortherntipoftheneedlepointstothebottomoftheseaatthenorthernendofthereticle,andmakestheneedletothebottomoftheseathenorth-southline.

Situationmainlyusethreeyuanplate,airiscommonlyusedtriaddish,butmodernfengshuiissituationcombinedwithqisomuchmoreincompositeplate.Othercommoncompassandeasydish,xuanemptydishanduniqueplateusedinthefactions, butnomatterwhatareligiouscompass,theremustbealayerofmiddleis24mountainazimuth,startedfromthenorth,arearrangedinsequenceRenZidecyl,uglygenYin,JiaMaob,Chenxunhave,cnoond,didnotheshen,heptylunitarysheen,dryhaitwenty-four.[6]

ChongngrefinderusedphotoelectricscanningAnglemeasuringsystem,themaintypesare:codediscAnglemeasuringsystem,gratingplateAnglemeasuringsystemanddynamicAnglemeasuringsystem(gratingplate),etc.

4,electronictheodoliteaimandreading: (1)theeyepiecelight:eyepiecelenstomakethecrosshairisclear. (2)theaimandobjective:lightcrudeatgoal,thefocusoftheobjectivemakecleargoals.Payattentiontoeliminatetheparallax.Aimingattarget. (3)reading: Adjustthelightingreflector,thereadingwindowbrightnessmoderate,rotatingreadingmicroscopeeyepiecetoscorelineisclear,andreading.

likeZ0fallsonZpoint;Ormakethecrosshairtotheinstrumentautomaticallyswingintheoppositedirection,ZinZ0crosshairnodepoint. Suchaslightpathisnotusingthelightrefractionandusetranslation,aslongasthetranslationisequaltotheamountofZ0Z, thecrosshairpointZonlikesomeZ0,alsocanachievethepurposeofZ0andZoverlap.Automaticanpingcompensatoraccordingtothestructurecanbedividedintoactivityobjective,

Measuringinstrumentisusedtomeasurethesizeandotherfactorsinthemarketatpresenttheequipment,theequipmentcanbedividedintovarioustypes, therearealsomanydifferentmeasurementmethods,eachmethodofthemeasurementresultsmaybedifferent,eachhaveadvantagesanddisadvantages,thispaperexpoundsthesimpleintheselectionofindividualto.

Measuringinstrumentsmusthavethescaleandvolume,sothatwecanmeasuretheattributevalue,isadvantageousforthethirdpartyinspectionstandards. Chartisusedtodomeasurement,ancientobservatoryisgenerallyinlargevolume,theshipismadeofsmallsize.Isusuallyneedtothreepeople,onepersonmakeamistake,theresultisno. Andlooked,andastronomerscommonlyusedmeasuringinstrument.Thisisbetterthansimplechart,oneoperation.

Three,threecoordinatesmeasuringinstrumentinaccordancewiththeoperatingmodeclassificationmanualandmotordriveandCNCasthreetypes.