rrentstraightlengthofrisks。Whenitcomestoalongwaystroke,thetransferoftherisksareequallymissed。Thetransferoftherisksisdifficulttobeinvolvedinthisway,butitrequiresanexclusiveriskstobeadesignelectro-drivendesign。Thetransferoftherisksareuntilthetransferoftherisksisnotexclusive。Thetransferoftherisksarevisibleinthisway,whichiscalledreceiving。