1. Uniform magnetic teb faib, kev txhim kho lub cev muaj zog thiab efficiency;
2. Qhov chaw txuag, hloov mus rau ntau daim ntawv thov;
3. Txo lub zog noj, yog li txhim kho lub cev muaj zog thiab kev ntseeg tau;
4. Ua kom muaj ntau- theem tswj;
Hauv cov ntsiab lus, cov hlau nplaum nkhaus muaj ntau yam zoo hauv cov motors. Nrog rau kev txhim kho thev naus laus zis thiab kev lag luam kev vam meej, daim ntawv thov ntau yam ntawm cov hlau nplaum nkhaus yuav txuas ntxiv nthuav dav, thiab lawv qhov kev ua tau zoo yuav dhau los ua pom tseeb dua.