标签: 簡單

電視標准簡單介紹DMAICPALNTSCSECAMDVBATSCISDB-TDVB-TDVB-CDVB-SDMAIC1PALNTSCSECAM2529.9762530NTSCPAL5252DVB-TDigitalVideoTerrestrialBroadcastingTerrestrialCodedOrthogonalFrequencyDivisionMultiplexingCOFDMAdvancedTelevisionSystemsCommitteeTrellis-Coded8-LevelVestigialSide-Band(8-VSB)IntegratedServiceDigitalBroadcastingBandwidthSegmentedTransmissionBSTOFDMTerrestrialATSCISDB-TThisdocumentwascreatedwithWin2PDFavailableathttp://www.daneprairie.com.TheunregisteredversionofWin2PDFisforevaluationornon-commercialuseonly.……

机构簡單介紹五金小件介紹1.螺絲大致分類:第一种分法:Ｔ-ＳＣＲＥＷＳＣＲＥＷ自攻螺絲非自攻螺絲第二种分法:公制螺絲英制螺絲如:Ｍ３,Ｍ６等等#６-３２二.螺絲之電鍍方式:NIB------為鍍黑鎳NIW-------鍍白鎳GREENCOATED-----綠色鍍層YELLOW—黃色鍍層ZNW----鍍鋅白色ZNC----鍍鋅五彩色CRW---鍍鉻PSV---鈍化處理BCT---BLACKCOATING染黑三:螺絲之材質:LOW-CARBONSTELL,S10~S20----低碳鋼SUS----不鏽鋼SK----工具鋼PLASTIC----塑膠CU----銅AL----鋁對螺絲通常均作熱處理(HEAT-TREATMENT).螺絲驅動方式:(+)PHILLIPS十字形(-)SLOTTED一字形(+-)SLOTTED&PHILIPS(ALN)ALLEN六角形(SPLN)SPLINE五.頭形:PAN(PANHEAD)TRS(TRUSS)FLAT平頭RND(ROUND)圓頭BIN(BINDING)鈍形頭HEX(HEXAGON)FLNG/PAN(GLANGEPAN)加熱片FLNG/HEX(FLANGEHEXAGON)六角頭SOC/FIL(SOCKETFILLI……