Raws li tus neeg muag khoom ntawm lub hnab yas rau kev xa tawm, tus nqi ntawm cov khoom siv raw tau nce siab.Dab tsi yog vim li cas rau kev nce nqi ntawm cov khoom siv raw?
Raws li peb txhua tus paub, lub hnab yas yog ua los ntawm polyethylene, polypropylene, polyvinyl chloride thiab lwm yam ntaub ntawv raw.Feem ntau ntawm cov yas yog ib tug polymer tsim los ntawm polymerization ntawm by-products muab rho tawm los ntawm roj av thiab lwm yam fossil raw cov ntaub ntawv.
1. Raws li tus nqi ntawm cov roj nce ntxiv, cov nqi ntawm cov khoom siv raw yuav nce ntxiv
2. Muab khoom thiab thov resonance
3. Kev cuam tshuam ntawm kev sib kis
Cov nqi raw khoom tau nce, qee qhov yog tshwm sim los ntawm kev tsim khoom tsis txaus thiab kev xa khoom vim muaj kev sib kis.Cov kab mob sib kis tau ua rau muaj kev tsis txaus ntawm cov peev txheej tsim khoom hauv qee lub tebchaws, thiab ntau thaj chaw ntawm cov khoom siv raw khoom tau tso tseg lossis txwv kev tsim khoom.Tsis tas li ntawd, kev poob qis hauv kev xa khoom thoob ntiaj teb kev muaj peev xwm tau ua rau muaj kev nce nqi ntawm cov khoom thauj khoom thauj khoom thauj khoom thauj thiab lub sijhawm xa mus ntev, uas tau ua rau lub ntiaj teb tus nqi txuas ntxiv ntawm cov khoom siv raw.
Post lub sij hawm: Feb-26-2021