来自糜宏斌的问题
英语翻译AsimplecivilianGPSreceivercostsaround$100andrepresentstheincrementalcostofmakinganewobjectpositionableindependentlyofitsgloballocation.Asystemthatusesinfraredbeaconsforbroad-castingroomIDsrequiresabeacon
英语翻译
AsimplecivilianGPSreceivercostsaround$100andrepresentstheincrementalcostofmakinganewobjectpositionableindependentlyofitsgloballocation.Asystemthatusesinfraredbeaconsforbroad-castingroomIDsrequiresabeaconforeveryroominwhichuserswantthesystemtofix0cndthem.Inthiscase,boththeinfrastructureandtheobjectthesystemlocatescontributetotheincrementalcost.
