A lub cev khoom yog yam ntxwv ntawm cov khoom uas tuaj yeem soj ntsuam lossis ntsuas yam tsis hloov tus kheej ntawm cov khoom. Nyiaj yog cov hlau ci uas ua tau hluav taws xob zoo heev.
yam khoom twg yog qhov ci ntsa iab?
Ntawm no yog cov npe ntawm cov khoom siv zog. Xim: Kev nkag siab ntawm qhov sib txawv wavelengths ntawm lub teeb. Odor: Kev nkag siab ntawm qhov hnov tsw. Luster: Shininess of surface.
Yuav ua li cas cov khoom yog flammability?
tshuaj muaj zog yog cov khoom uas tuaj yeem ntsuas lossis pom tsuas yog thaum muaj teeb meem hloov pauv los ua qhov sib txawv kiag li. Lawv muaj xws li reactivity, flammability, thiab muaj peev xwm los xeb. Reactivity yog lub peev xwm ntawm cov teeb meem los teb cov tshuaj nrog lwm yam tshuaj.
Yuav ua li cas pom cov cuab yeej?
Lub cev muaj zog thiab hloov pauv Lub cev lub cev tuaj yeem pom lossis ntsuas yam tsis hloov pauv qhov muaj pes tsawg leeg. Lub cev lub cev yog siv los soj ntsuam thiab piav qhia txog qhov teeb meem.
Yuav ntsuas yam khoom li cas?
Lub cev muaj zog yog cov khoom uas tuaj yeem ntsuas lossis pom yam tsis hloov cov tshuaj lom neeg ntawm cov khoom. Qee qhov piv txwv ntawm lub cev muaj zog yog: xim (intensive) ntom ntom (intensive)
