Eastern AsiaMeasuring a compassmanufacturerTrustworthy businessGeneralwithvaluetodeterminethesizeoftheprecision,canbedividedinto: DJ6dial,valueof1°DJ2dialscaleof20'DJ1(T3)scalevalueis4' Accordingtotheprecisionfromhightolowprecisionpoints:DJ0.7,DJ1,DJ2,DJ6,DJ30(D,Jlettersofearthandtheodolite,respectively) TheodoliteisusedformeasuringtheAnglemeasurementtaskofprecisionmeasuringinstruments,canbeusedtomeasureAngle,constructionloftingandroughdistanceacquisition.Acompletesetofequipmentconsistsoftwoparts,instruments,horse.

andthepracticeloftingitout.Someoneisusingitaccordingtothesimilartriangleprincipletomeasureheightmaybehorizontalinterval,butnotprecise,thelargerthedifferencebetweensimilartriangle,thegreatertheerror. Finalbriefsaidagain:transitpriorityislookingorpeninesigtheright-angleprinciple,theuseofotherviewpointsarenotveryaccurate.Myreplytoexpectsomehelptoyou.

Accordingtostatistics,everyyearfromforeignimportsofadvancedinstrumentsandequipmentworthnearlysixhundredbillionyuan,withhigh-endtechnologyoforrelatingtothe**safetyequipmentprohibitedtoentertheChinesemainland, accordingtostatistics,everyyearadvancedinstrumentsandequipmentimportedfromabroadisworthnearlysixhundredbillionyuan,

--------700?Andnaturalaging2-3years,maketheprecisionoftheproductstability,wear-resistingperformanceisgood.Testflatcastironmaterial,itiseasytorustinhumidenvironment,sotheuseoftheplatformaftertheplatformneedworkingtablesurfacetowipeclean, withanti-rustoildaubsurface.Intheplatform,inuseprocessshouldpayattentiontoavoidknockhardtoolsorcollisiontestflatsurface,

toensuretheaccuracyoftestplate.Ifyoudon'tuseforalongtime,canusebutterandthencoveredwiththepaper,itisimportanttoensurethesurfaceoftheplatformdoesnotrust.