Video: Qhov txawv ntawm lub dav hlau thiab saum npoo yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Raws li verbs qhov sib txawv ntawm qhov chaw thiab dav hlau
yog tias nto yog muab ib yam dab tsi nrog rau saum npoo thaum dav hlau yog kom smooth (wood) nrog lub dav hlau los yog dav hlau tuaj yeem yog (nautical) txav mus hauv a txoj kev uas nqa tus hneev nti ntawm lub nkoj tawm hauv dej.
Ua li no, lub dav hlau thiab qhov chaw yog dab tsi?
Hauv lej, a dav hlau yog ib lub tiaj, ob sab nto uas extends infinitely deb. A dav hlau yog ob-dimensional analogue ntawm ib tug point (zero dimensions), ib kab (ib dimension) thiab peb-dimensional qhov chaw.
Tsis tas li ntawd, qhov sib txawv ntawm tag nrho cov cheeb tsam saum npoo thiab ntim yog dab tsi? Cov duab nrog tib yam cheeb tsam tuaj yeem muaj qhov sib txawv; thiab cov duab nrog tib lub cheeb tsam tuaj yeem muaj qhov sib txawv thaj chaw . Qhov txawv ntawm qhov chaw thiab ntim yog dab tsi ? Qhov chaw saum npoo yog qhov sum ntawm thaj chaw ntawm tag nrho cov ntsej muag ntawm lub cev muaj zog. Ntim yog tus naj npawb ntawm cubic units uas ua kom muaj ib daim duab.
Nyob rau hauv no hais txog, koj yuav ua li cas qhia tau hais tias ib tug nto yog ib tug dav hlau nto?
A nto hais tias yog "qhov uas muaj qhov ntev thiab dav nkaus xwb", nws mam li mus hais tias "a dav hlau nto yog a nto uas nyob sib npaug nrog cov kab ncaj nraim ntawm nws tus kheej."
Dab tsi yog qhov txawv ntawm qhov dav thiab dav hlau?
Cov lus teb ceev Dav hlau feem ntau txhais tau hais tias lub dav hlau, ib qho chaw tiaj tus lossis ib lub cuab yeej rau shaving ntoo. Plain feem ntau txhais tau hais tias yooj yim los yog ib qho kev nthuav dav ntawm lowland. Cov lus dav hlau thiab tiaj muaj ntau lub ntsiab lus. Hmoov tsis zoo, ob qho tib si muaj lub ntsiab lus hais txog kev tiaj tus, thiab qhov no feem ntau yog qhov tsis meej pem.
Pom zoo:
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