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NTSC |
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NTSC
(National Television Standard Committee), ¬°¬ü°ê°ê®a¹qµøµø°T¼Ð·Ç©eû·|ªºÂ²ºÙ,
¸Ó³æ¦ì¨î©w¤F«UºÙ¬ü³W¹qµøµø°T¼Ð·Ç. ¥Ø«e°£¤F¬ü°ê¥]¬A¥[®³¤j, ¾¥¦èô,¤é¥»¤Î¥xÆW(¥þ¥@¬É¦@31°ê¨Ï¥Î)³£¬O¨Ï¥Î NTSC ¼Ð·Ç.
¬ü³W¨t²Î±Ä¥Î60Hzªº§ó·sÀW²v, ¨C±iµe±¤À©_°¸¹Ï³õ(Odd and Even Field)¥æ¿ù¦¡±½´y(Interlaced-scan)
²Õ¦X¦Ó¦¨, ¤@±iµe±³q±`¦³525±ø¤ô¥½u, ¦ý¹ê»Ú¦b¿Ã¹õ¤Wyd¬Ý¨ìªº¤j¬ù¥u¦³487±ø, ¨C¬íÄÁ¬ù¥i¥H§ó·s 29.97 ±iµe±,
±`¨£³W®æ¼gªk³£¬O¼g NTSC¼Ð·Ç¼v¹³¸ÑªR«×¤j¬ù¬O 640(H) x 480(V) µe¯À, ¨C¬í30±i§ó·sµe±. |
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Optical
Magnification |
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©Ò¿×ªº©ñ¤j¿²v
(Magnification)«üªº¬O³B²z©ñ¤j¬Y¥ó¨Æª«ªº¥~Æ[¦Ó«D©ñ¤j¹êÅ館¤o, ©ñ¤j¿²v¦P®É¤]¬O¤@ºØ¼ÆÈ¥Î¨Ó§Î®eª«Åé³Q |
©ñ¤j¦h¤Ö. ´N¬Y¨Ç»â°ì¨Ó»¡, ¹ïÀ³¨ì¤@ÓÁY¤p¥~Æ[¤Ø¤o®É¿²vªº¼ÆÈ¥i¯à·|¤p©ó1,
¦]¦¹¤]³QºÙ¬°ÁY©ñ¿²v(Minification). ©Ò¿×ªº¥ú¾Ç©ñ¤j¿²v(Optical
Magnification)«üªº¬O¤¶©ó¼v¹³¤Ø¤o»P¹êÅ館¤o¤§¶¡ªº¤ñ¨Ò. ©ñ¤j¿²vªº¤ñ¨Ò¬O¥HX§@¬°¥Nªí²Å¸¹, 10X´N¥Nªí©ñ¤j¤Q¿ªºª«¥ó¥~Æ[¼v¹³. |
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PAL |
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PAL
(Phase Alternating Line)¥Nªí¬Û¦ìã½u¬O1960¦~¥N¥Ñ¼Ú¨t°ê®a¨î©w¥X¨Óªº«UºÙ¼Ú³W¹qµøµø°T¼Ð·Ç,
¥Ø«e¼Ú¬w(°£¤FªF¼Ú¤Îªk°ê±Ä¥ÎSECAM³W®æ¥H¥~), ¿D¬w¤Î¤¤°ê¤j³°¦a°Ï¬Ò±Ä¥ÎPAL¼Ð·Ç(¥þ¥@¬É¦@45°ê¨Ï¥Î),
¼Ú³W¨t²Î±Ä¥Î50Hzªº§ó·sÀW²v, ¦P¼Ë¬O¨C±iµe±¤À©_°¸¹Ï³õ(Odd and Even Field)¥æ¿ù¦¡±½´y(Interlaced-scan)
²Õ¦X¦Ó¦¨, ¤@±iµe±³q±`¦³625±ø¤ô¥½u, ¹ê»Ú¦b¿Ã¹õ¤W¥i¥H¬Ý¨ì580±ø, ±`¨£³W®æ¼gªk³£¬O¼gPAL¼Ð·Ç¼v¹³¸ÑªR«×¤j¬ù¬O768(H) x
576(V) µe¯À,¨C¬íÄÁ¥i¥H§ó·s25±iµe±. |
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Pincushion
Distortion |
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©Ò¿×ªº°wª¬ÅܧÎ(Pincushion
Distortion)¬O¦]¬°¥ú¾ÇÃèÀYªºÃè¤ù©ß¥ú¨¤«×ªº»~®t©Ò³y¦¨ªº¥ú¾ÇÅܧÎ. °wª¬Åܧθò¨Ï¥Î¿²vÃèÀY¦³ÃöÁp±`µo¥Í¦bÅܵJÃèÀY©ÎªÌ¨Ï¥Î¥[¿ÃèÀY®É,
¤×¨ä¬O±µªñÃè¤ùªº¥~½t¼v¹³³q±`¥i¥H¬Ý¨ì¼v¹³µLªk§e²{§¹¬üªºª½½u¦Ó¥X²{ªñÃþ¦ü¦V¤¤¶¡À½À£ªºª¬ªp. |
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Pixel Clock |
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©Ò¿×ªºµe¯À®ÉÄÁ(Pixel clock) «üªº¬O¥Î¨Ó¹º¤À¶i¨Óªº¼v¹³¤ô¥½u¸Ìªº¦U§Oµe¯À,
¤S³QºÙ¤§¬°ÂI®ÉÄÁ(Dot clock). Pixel clock
¥²»Ýn¤Q¤Àéw(±a¦³«D±`·L¶qªºJitter)¤~¯à¹ïÀ³¨ì¶i¨Óªº¼v¹³©Îµe±¦Ó¤£»Ýn¥¿½TªºÀx¦s, Pixel Clock
ªºÀW²v¶V°ª´N·|¦³¶V¦hªºµe¯À¥X²{¦b¿Ã¹õ¤W(µe¯À¸ÑªR«×) |
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Pixel Size |
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¤j³¡¥÷ªºCCD©ÎCMOS¼v¹³³£¬O¥Ñµe¯À©Òºc¦¨ªº.
©Ò¿×ªºµe¯À(Pixel)«üªº¬O·P¥ú¤¸¥óªº°}¦C¸Ìªº¨ä¤¤¤@Ó³æ¦ì, ¦Ó¨Ì¾Ú»s³y¼t°Ó¤Î³W®æªº¤£¦P, ¨å«¬ªºµe¯À¤Ø¤o(Pixel
Size)ªº¤j¤p¦³8~20·L¦Ì¥ª¥k, ¥Ñ©ó·P¥ú¤¸¥ó¤Ø¤oªºÃö«Y, µe¯Àªºµ²ºc¤Ø¤o¦P®É¤]·|¼vÅT¸ÑªR«×, ³q±`¸ÑªR«×¶V°ªµe¯À´N¶V¤p. |
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Progressive-scan |
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¦¹ºØ¼v¹³¿é¥X¼Ò¦¡¬O°ò©óº¥¶i¦¡/«D¥æ¿ù¦¡CCD·P¥ú¤¸¥óªº¤u§@¯S©Ê,
¨äì²z¬O±N·P¥ú¼v¹³¤§¤ô¥±½´y½u¸ê®Æ¨Ì§Ç°e¥X,¼v¹³°T¸¹«h¬O³sÄò¸ê®Æ¤@¦¸¿é¥X¨Ã«D¹³¥æ¿ù¦¡ªº¤À2ӹϳõ°e¥X.
¦¹ºØ¼Ò¦¡±`À³¥Î©óDVD¿ý¼v©Î°ª¸ÑªR«×¼v¹³¿é¥X¦P®É¤]¤Q¤À¾A¦X¥Î©ó°ª³t¼v¹³¤§À³¥Î. |
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R |
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RGB vs. CMYK |
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©Ò¿×ªºRGB§Y¬O¹qµø¨t²Îªº±m¦â¤Tì¦â – ¬õ(Red), ºñ(Green),
ÂÅ(Blue), ¥¦¦P®É¤]¬O¥ú½uªº¤Tì¦â.
¦Ü©óCMYK«h¬O¥Nªí±m¦â¦L¨êªº«C(Cyan)¡B¬v¬õ(Magenta)¡B¶À(Yellow)¡B¶Â(Black) ¥|¦âªo¾¥.
¤£½×¬OÅã¥Ü©Î¦L¨ê³£¬O§Q¥Î¨äì¦â¥h½Õ°t¥X·Qnªº¦â±m. |
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ROI |
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©Ò¿×ªºROI(Region of
Interest)«üªº´N¬O¨Ï¥ÎªÌ¥i¥H¥Î¯x§Î©w¸q¬Y¨Ç°Ï°ìn¨D·P¥ú¤¸¥ó¥u°w¹ï¸Ó°Ï°ì¥hÃn¥ú³B²z¼v¹³. ´N¼v¹³³B²zªº»â°ì¦Ó¨¥,
ROI¤]¥Nªí¯S§O«ü©wªº°Ï°ì, ¥Î©óÀˬd©Î¶q´úÀ³¥Î¥i¥H¸`¬Ù¨t²Î¼v¹³³B²z®É¶¡. ¦³®É¤]ºÙ AOI (Area of Interest). |
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Saturation |
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Saturation
«üªº¬O¦â±mªº¹¡©M«×, ¦â±m¹¡©M«×¨Ã¤£¬O«üÃC¦âªº«G«×¦Ó¬O«üÃC¦â¿@²H, ¹¡©M«×®t®É³q±`ÃC¦â¿@«×¤£°÷¦â±mÅã±o¸û·t²H, ¦Ó¯Â±mªºÃC¦â«h¸û¿@¥B©ú«G.
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SECAM |
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SECAM
(Sequential Couleur a Memoire (French for Sequential Color with
Memory)) ¥ÑĬÁp©Ò¥D¾Éªºµø°T¼Ð·Ç, ¥Ø«e°£¤FĬÁpÁÙ¥]¬Aªk°ê¤ÎªF¼Ú°ê®a(¥þ¥@¬É¦@29°ê¨Ï¥Î)¬Ò±Ä¦æSECAM¹qµøµø°T¼Ð·Ç,
¨ä¸ÑªR«×¤Î§ó·sÀW²v³W®æ»PPALÃþ¦ü, ®t§O¥u¦b©óSECAM ªº¦â®t°T¸¹³B²zµo°e¤è¦¡»P PAL ¤£¦P. |
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Sensor Size |
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©Ò¿×ªº·P¥ú¤¸¥ó¤Ø¤o(Sensor Size)«üªº¬O CCD/CMOS
·P¥ú¤¸¥ó¤W±¥i·PÀ³¥ú½u¶Ç¿éÂà´«¦¨¹q¤l°T¸¹ªº°Ï°ì¤Ø¤o. ¨å«¬¤Ø¤o¥Ñ1/4” ~
1”³£¦³¤@¯ë¥H¶q´ú¹ï¨¤½u¤Ø¤o¬°¨Ì¾Ú. |
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Smear |
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CCD¨ú¹³©Òµo¥ÍªºSmear²{¶H§{¶¡®ÑÄy
¤¤¤å¸ÑÄÀ¬°º|¥ú,
¦bCCD¼Æ¦ì¬Û¾÷¬O«ü¥Õ¦â³Q·ÓÅé¤W¤U¥X²{Áa§Î¥Õ¦â©ì¦²¡A³y¦¨CCD¼Æ¦ì¬Û¾÷µo¥Ísmear²{¶H¡A¥Dnì¦]¬O±j¯P¥ú½u®g¤JCCD®É¡A¥ú½uº¯¤JCCDªº««ª½Âà
°e³¡¡A¤Þµo¦h¾l¹q²ü¶i¦Ó³y¦¨¦p¹Ï©Ò¥Ü¤§smear²{¶H¡C
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S/N Ratio |
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«H¾¸¤ñ¤SºÙ¬°°T¾¸¤ñ¡A^¤å¥sSignal
to Noise Ratio¡A¬O«H¸¹¤¤¦³¥Î¦¨¤À»PÂøµ¦¨¤Àªº±j®z¹ï¤ñ¡A¥Î¤À¨©¡]dB,
Decibel¡^ªí¥Ü¡C«H¾¸¤ñ¶V°ªªí©ú¥¦²£¥ÍªºÂø°T¶V¤Ö¡A¤]ªí¥Ü°T¸¹«~½è¶V¦n¡C
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Sobel
Transform |
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¨CÓµe¯À¦b¤@ÓÂà´«ªº¼v¹³¤¤³£¦³¨ä±j«×¥Î¨Óªí²{¨ä¦b¼v¹³·í¤¤ªº©Ò¦b¦ì¸m. ©Ò¿×ªº Sobel
Âà´«¬O¤@ºØ¥Î¨Ó°»´úÃä½tªº§Þ³N, §Q¥Î¦Ç¶¥Èªº¶É±×©Ê¥h¤À¿ë¤ô¥, ««ª½¥H¤Î¹ï¨¤©Ê. |
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Spectral
response |
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¥ú½uªº±j«×¤@¯ë¥i¥Hªiªøªí¥Ü³æ¦ì¬°nm (nanometer),
¤@¯ë¹ï©ó·P¥úªºµ{«×¤Î½d³ò§YºÙ¤§¬°¥úÃФÏÀ³. ¤@¯ë¤H²´¥i¥H±µ¨üªº¥ú½uªiªø¥Ñ 400nm ~700nm ¦]¦¹³QºÙ¤§¬°¥i¨£¥ú½d³ò, ·íªiªø±j«×¨ì
400nm ®É§Y¤w¹F¨ì©Ò¿×ªºµµ¥~½u¥ú, ªiªø¦b800nm ~900nm °Ï¶¡ºÙ¤§¬°ªñ¬õ¥~½u, ¨ì1000nm ®ÉºÙ¤§¬°¬õ¥~½u. CCD
Sensor ªº»sµ{¥i¥H·PÀ³ 400nm ¨ì 1000nm °Ï¶¡ªº¥ú½uªiªø, CMOS Sensor ¦b¥i¨£¥ú½d³òªº¥úÃФÏÀ³¤£¦p CCD
Sensor ¨Ó±o¦n, ¦ý¬O¦b¬õ¥~½u°Ï¶¡ªº¥úÃФÏÀ³«h¤ñCCD Sensor n¨Ó±o°ª. |
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Structured
Light |
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©Ò¿×ªºµ²ºc©Ê¥ú·½¬O¨Ï¥Î¹Ï§Î¦¡ªº¿O·½¥hÀ°§U
§P©w¤@Ó3ºû¥ßÅ骫¥óªº¥~§Î, ¸Ó¹Ï§Î¤]³\¬OÀRºA©ÎÀH®É¶¡§ïÅÜ. ±`¥Îªº¦³®°§Î¹p®g¥ú§ô, ±½´y¦¡¹p®g¥ú§ô¥H¤Î§ë¼v¦¡µ²ºc©Ê¥ú·½.
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Sub Pixel
Resolution |
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©Ò¿×ªº¦¸µe¯À¸ÑªR«×¥i¥H¨Ï¶q´úµ²ªG¤ñ³æµe¯À¸ÑªR«×§ó¬°ºë·Ç,
¤@¯ë±Ä¥Î²Îp¼Ò¦¡¤Î¦Ç¶¥È2ºØ¤è¦¡,µ²¦X¦b¤@°_¨Ï¥Î®É³Ì¨Î¶q´ú¸ÑªR«×¥i¹F 1/50 µe¯À.
Á|¨Ò¨Ó»¡:¶q´ú¤@Ó¶ê§Îªº¥úºÐ¤ù¥~§Î¥hpºâ²Îp¥¦ªº¤Gºû«¤ß,¥i¥H§Q¥Î¼v¹³¤GȤƤ§«á¨ú±oªº©Ò¦³¶q´úÂIªº¥§¡¯BÂI¥hpºâ©Ò¿×ªº¦¸µe¯Àªº¤¤¤ß. |
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S-Video |
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©Ò¿×ªºS-Video¬O«ü¤@ºØ¼v¹³´¡®yªºµwÅé¼Ð·Ç.
©Ò¿×ªº¤ÀÂ÷¼v¹³°T¸¹¬O«ü±N¼v¹³ªº±m¦â¤Î«G«×¸ê®Æ¤À¶}¶Ç°e¤@¯ë¤]ºÙ¤§¬° Y/C °T¸¹, ¦ý¥Ñ©ó³z¹L S-Video ªº¼v¹³´¡®yªºÃö«Y¦]¦¹
S-Video¤]±`¸ò Y/C°T¸¹¹º¤Wµ¥¸¹. |
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T |
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TDI
Line-scan Camera |
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TDI¬OTiming Delay Integration ªºÁY¼g, ÅU¦W«ä¸q¥¦ªºCCD
µ²ºc¤W¸û¬°¯S®í, ¨Ã«D¬O³æ±Æªº¥ú¹q¤G·¥Åé¦Ó¬O96±Æªº¥ú¹q¤G·¥Åé¤U¥h¤@°_·P¥ú§@¥Î, ¤]´N¬O¦P¼Ëªº¤@¦¸Ãn¥ú®É¶¡¤U, ¥¦·|²Ö¿n
96±Æ¥ú¹q¤G·¥Å骺¥ú¶q¥hÂà´«¦¨¹q²ü°T¸¹¤§«á¦A¶Ç¿é¥X¥h, ¥Ñ©ó²Ö¿nªº«G«×¸û¤@¯ëLine-scan camera ¨Ó±o°ª,
¬G¸û¾A¦XÀ³¥Î¦b¥ú½u¸û·tµLªk´£¨Ñ¥R¨¬«G«×ªº¨t²Î¤W.¦ý¬O³oºØ TDI ªº«¬¦¡¤Q¤Àª`«¨ú¹³ÀW²v¤Î¹B°Ê³t«×ªº¤@P©Ê,
n¬O¹B°Ê³t«×¤£Ãªºª¬ªp¤U¨ú¹³¥X¨Ó·|¦³¼Ò½kªº±¡§Î |
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Tele-centric
Lens |
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©Ò¿×ªº¦P¶bÃèÀY(Tele-centric Lens)«Y±N¦h«Ãè¤ùªº¤J¥ú¨¤«×¦P¶b¾É¤Jµ¹ CCD
Sensor, µ²¦XÄá¼v¾÷¤Î¥ú¾ÇÃèÀYªº¦P¶b¤¤¤ß¯S©Ê¥i¥H½T«O¥iµø½d³ò¤ºªºª«¥ó¼v¹³¤£½×¹ê»Úª«¥ó¬O§_¦³°ª§C®t¶Z©Î¬n±×¬Ò¤£·|¼vÅT®Õ½Õªººë½T«×,
Äá¼v¾÷³z¹L¦P¶bÃèÀY¥i¥H±o¨ì¤@P¥±ªºµe±. |
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TVL |
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©Ò¿×ªº¹qµø½uTVL(Television Lines)«üªº¬O¤@ºØ¥Î¨Ó¶q´ú¸ÑªR«×ªº³æ¦ì,
¥Dn¬O°Ñ¦Ò·í³Ì¤j¶êªºª½®|¦b¿Ã¹õ©Î¨ä¥¦°Ñ¦Ò°Ï°ì¤¤¤¶©ó¥Õ¦âªÅ¶¡©Ò¥æ¿ùªº¶ÂÂI, ¥i¥H¥X²{¤Q¤ÀÅãµÛªºª½½u¨äªø«×§¡µ¥ªº³Ì¤j¼Æ¦r.
³Ì¨å«¬ªº¬O±Ä¥Î”EIA Resolution Chart 1956” ³oÓ´ú¸Õ¹Ï®×¥h¶q´úÄá¼v¾÷ªº¸ÑªR«×. |
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W |
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White Balance |
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¥Õ¥¿Å´N¬O§i¶D¬Û¾÷¤°»ò¬O¥Õ¦â¡C§Ṳ́H²´¥Ñ©ó¦³¦Û°Ê½Õ¾ã¾÷¯à¡A¥[¤W¾Ç²ß¤Î¦¨ªø¹Lµ{¤¤¡A¹ï©ó¡u¥Õ¦â¡vªº©w¸q
¦³²M·¡»{ª¾¡A©Ò¥H§Ṳ́H²´¥i¥H¥¿½T¤À¿ë¥X¨Ó;¤£¹L¬Û¾÷¤£¦æ,°²¦p¥Î³¿¯À¿O·½¥h·Ó¤@±¥ÕÀð«h¬Û¾÷·|§e²{°¾¶À¦âªºÀð¡C¥Ñ©ó¼Æ¦ì¬Û¾÷¤º³¡¦³¤@®M¥Î¨ÓpºâÃC¦âªº¤è
µ{¦¡¡Apºâªº°ò·ÇÂI´N¬O¥Õ¦â¡C©Ò¥H¦pªG§Ú̧i¶D¬Û¾÷¤°»ò¬O¥Õ¦â¡A¨º»ò¥¦´N¥i¥H«ÜÁo©ú¦apºâ©Ò©ç¨ìªº³õ´ºùØ¡Aºñ¦â·|¦³¦hºñ¡A¬õ¦â·|¦³¦h¬õ¡C |
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