Aṭas n usgenni ay d-yessummeḍ ɣef uɣef n tkeṛṛust n uɣef n uɣef n tezmert d aɣef-nsent. Taṛmist-nni tettɛeddayt n ufarit, tḥebsa-d, tnezzay ed tnemmert-nni, ttqeddemt n tkeṛṛust-nni n tmedduṛt s tmeddurt s tmerwin n tmedden yernu n sseɣri. Aɣef n tɣawsa n Hengjie yesɛa ttban n tɣawsiwin n Transmission Contrul (TCU), tfekkat n tqaḍen n tmecatroniks, Tikkayt n tqebbat ed ssebḥen ay d-yessaɣen, ssegggmeḍ, sseḥad n ufewḍen n tsunud. Ifaddan-a sseqdact s mliḥ deg tkeṛṛusin n yimsikru n tkeṛṛust n tnemmert n tnemmert n tṣeggmeḍ, tbeddel, yernu n tmerwin n tmerwin n tmerwin n tmerwin n uḥebni. S tfehmeḍ mliḥ s tmuran n uɣebsa n uɣef-nnes, Hengjie tettɛedday-d i d-yettnefkt n uḍḍen, Yezmer ad t-id-id-yettnefken s tḥebsa-d s tɣawsa n umaḍal deg umaḍal.