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ڵλãʱ
ֻ๦С
2004-03-09 10:20it168ߣ
ֻÿ˵ϢϢءֻǸʲôģҲ书ʲô벻˵˭סǣš׷ࡱ˼룬೧Ϊֻࡰ๦ܡеߵԸҲ˵Щ๦ܡֻûǷãֻҪ͡ϲ桱ֻġ๦ܡӦоУרвƷɡ

ֻչûʲôôֻһԵ롣ءɫߵյĻҪ󣬶ԶԶֻճǸͷ

ֻ¼ܾ͸ûʲôˣ¼̵ͦݣֻӰ¼ʱֻΪ1ӣطʶҡάҪǽת豸Ի¼ܸʽƣϼѡ

Ͳ幦ܵʮֶʵֻһ֪ͨѣԷ㣬ġ͡⶯㲦ͨԷĵ绰ȸһΡ塱㹻ꨣһҪƷѵġӡϸûá

кܶϷ֮Ĺܣһ.....

ʵЩҲûʲôֻҪ׷νġʱСϻǮֻСĸӹܵҲԽܡʱĪֻGPRSܣͨ߷ҵˡˣ߶Դ˽GPRS˵봫ͳĻڵ·ҵȣԶߡƷѡлص㣬ˣGPRSdzչƶҵֻͨͼյʼϷƶ칫ȵȡ侲ع۲˼ѷֻ֣ƺ¥ȥʵʵûôȱһĻʹGPRSһֻӹܣһߡɫѣӶ䡪

ֻν쿪ֻPCGPRSӦӦʱЧԷdzǿͻţٶȺͱҪǿڱֽӡ߻ǵԷdzǿӦãѯݡ֡ΡͨԤȣЧΪĿġʵԺǿʹһĿȻӦʵͺĿǰֻĶŲ࣬һ˵ֻĶŹѾԡĶšվ죬ЩñʼDZԸ㣬˽Щֻܷ岻ҪӦǶšԼֻĻСɱߡٶص߻νġעáģʽֻʱáȻܶӦṩ̲ûʶһ㣬ƳҪΪӦǡǡֻĴɡ

Ŀ궨λȱڻܳGPRSĿûλȺ25-35֮䣬нϸ룬Ҫֻ߱ʹʡʵʿһЩѧ죬ǶֻʹΪеȣȻǸʣʹ¼С35ࡣȺжأɼGPRSȻûдڻһһ£Ѿֻ޵ȥԼijԣֻͨҪͨӡֽܻӦϢͶӪġշײ͡УGPRSҵʷѱΪ0.01-0.05Ԫ/KBȡɼֻͨGPRS鷳˷Ǯơ

ҵӪͷ塣GPRSйгܷɹ⣬̶ܴȻȡܷ񿪷ʺйгӦá߻һ˲ҵӪҪն̡Ӫ̡Ӧṩ̡ûĸڵ㹹ɵļֵϵҵģʲô׬ǮĿǰ˵⣬ĿǰGPRSֻĶȱGPRSרż˲ϡ٣ӦĿʼƷĽƶݿƳȶΪԼGPRSҵӪҪڡ

ݣⲻСGPRSҪõõӦãGPRSֻΪGPRSṩҳGPRSȱһɣ֮ļҲʮҪȻGPRSӦûûγгΪΪɵļѾ֣һ̵ֻгԱϣǵֻĿǰ⣻һ̵ֻļԱ߻ɱIJɵļƱػӰ쵽гƹӦáһӦṩ˵ǵҳг̵GPRSֻܿġˣҪѵǣGPRSܵڶGSMӪ̵Ϊһ3GĹԼҲǾƾ

ͬȾʹ˵ǡĦŵҹ˾ֱ֤ʵֻҲʱбȾĿܡϮֻIJԶ绰¼ܣ¼̸ݣˣͬʱӡǮп۳ҲɾֻϵĵݣĻʵȻҹĿǰδֻȾıGPRSʹҲ˵ǵġ

ֻijΪֻû㣬似ķչӦƺгҪ˼ġܣһЩʵĶҪ˼ˡΪϾֻǵ̫ˡ

ĵַ:http://www.cnonline.org/2004/article/3752.html
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