02.Thov sib txawv ntawm cov cua tshuab iav thiab lub qhov ncauj

Thaum koj saib ntawm ib yam khoom, thiab nws zoo li yog ib tus neeg muaj peev xwm ua rau nws zoo li ib qho ntawm lub khob cij, los sis yog tias nws muaj teebmeem nrawm thiab cov ntawv ntxiv tag nrho hauv cov iav txheej txheem ... nws tsis yog "cua tshuab" .

Kuv qhov khoom yog ib txoj kev qhib, khoob khoob khoob khoob khoob khoob khoob khoob, lub tais los yog lub pob duab, nws yog "feem ntau". Yog hais tias lub phab ntsa thickness hnyav, nws zaum tau tsawg tshuab; Yog hais tias lub phab ntsa thickness heev nyias, nws yuav tau pib nrog thinner walled tube Tshuag, tab sis yuav muaj nws kuj tau ntau txoj haujlwm ua intricate rau nws.

Cov npe ntawm "cua tshuab" iav yuav tsum qiv ib qho aura ntawm kev saib taus rau ib qho yooj yim. Qhov no tsis yog txhaum kev cai, tab sis tej zaum tam sim no koj tuaj yeem qhia qhov txawv.