Ua hauj lwm txoj cai ntawm kev tshawb fawb lab pob zeb
Jun 19, 2018
Kev piav qhia:
Xo planetary pob zeb yog cov khoom siv rau kev tov, kev sib tsom zoo, qauv me me qauv, kev tsim khoom tshiab thiab cov khoom ntim khoom siv me me.
Ua hauj lwm txoj cai:
Lub chaw kuaj pob zeb pob zeb muaj plaub lub pob sib tsoo tso rau ntawm ib lub voj voog. Thaum cov tig tig tig, lub dav hlau ua rau lub davhlau ya dav hlau thiab cov khoom nyob rau hauv lub tso tsheb hlau luam grinds thiab sib tov xyaw hauv kev kub ceev. Cov khoom yuav tsoo thiab muab ntau yam khoom sib txawv ntawm cov ntaub ntawv sib txawv thiab cov khoom siv nrog qhuav los yog ntub txoj kev. Tsawg tshaj plaws ntawm cov khoom grinded yuav ua tau me me li 0.1 micron
