1. Ọnụ ọgụgụ nke ahịrị okirikiri dị iche iche.

Nke a yiri otu ahịrị na ahịrị abụọ nke bolt.Otu isi kwesịrị inwe ike ịmecha ikpuru dum site n'otu ahịrị, ebe a ga-ekewapụ isi abụọ site na ahịrị.

2. Ọnụ ọgụgụ nke ntụgharị nke ikpuru dị iche.

Nke ahụ bụ, mgbe ikpuru na-atụgharị otu gburugburu, ọnụ ọgụgụ nkegia wormEzé na-anọchi anya Z2;n'ime usoro ntinye aka, ka ọnụ ọgụgụ nke isi irighiri, ka wheel worm na-atụgharị site na ezé abụọ, a na-achọkwa nnyefe multi-stage.Enwere ike ịhụ ya site na usoro nha nnyefe.

3. Ike dị iche iche mgbe ọ na-atụgharị.

Maka nnukwu nnyefe dị otú ahụ, dịka ọmụmaatụ, a na-eji ihe eji eme ihe, nawheel ikpuruna-atụgharị site na otu eze.Ọ bụrụ na e nwere helices abụọ na ikpuru, m nwere ike iru 1000, na olu dị ntakịrị.N'ikwu okwu n'ozuzu, a na-ekewa ikpuru na eri gaa n'aka nri na aka ekpe, ya bụ, ikpuru bụ otu isi.Site na ntụnyere, mgbe Z1=1, ọ ga-esikwu ike ịhazi.Na nnyefe ike, ọnụọgụ nke isi irighiri na-anọchi anya Z1 (n'ozuzu Z1=1 ~ 4).N'ịkwalite arụmọrụ dị elu, ikpuru ga-atụgharị otu ntụgharị nke wiil ikpuru tupu ọ gbanwee otu.Ntughari, ịdị arọ dị arọ, were nnyefe nnyefe I = 10-80. Onye nwere naanị otu helix na ikpuru na-akpọ otu irighiri isi, ya mere ikpuru nwere usoro nnyefe kọmpat na nnukwu nnyefe nwere ike nweta.A na-akpọ ya irighiri isi abụọ, nke pụtara na ikpuru na-eme otu mgbanwe, a na-akpọkwa ya ikpuru aka nri na ikpuru aka ekpe, n'otu n'otu.