1, vim tias lub tshuab tho thom khwm ib zaug ua tiav cov thom khwm peb txheej txheem, txhim kho kev tsim khoom, txo cov nqi zog, tab sis kuj tseem tiv thaiv cov thom khwm hauv ntau - channel txheej txheem ntawm cov pa phem thiab kev puas tsuaj.
2, thom khwm thom khwm ua tiav, khaws cov thom khwm khaws thiab xa mus rau sab saum toj ntawm lub tshuab nqus tsev, lub taub hau lub tog raj kheej los ntawm lub tog raj kheej ib tus tsav, khaws cov thom khwm kev taw qhia txav thiab muab tso rau hauv cov hnab nqa khoom, cov thom khwm rau xaws lub taub hau, seam lub taub hau syringe teem rau ntawm synchronous iav rings rings ob lub taub hau kom tiav txheej txheem seam.
