Koj puas tuaj yeem muab cov ntawv luam tawm rau hauv lub tshuab luam ntawv?

Cov txheej txheem:

Koj puas tuaj yeem muab cov ntawv luam tawm rau hauv lub tshuab luam ntawv?
Koj puas tuaj yeem muab cov ntawv luam tawm rau hauv lub tshuab luam ntawv?
Anonim

Newsprint yog nyias thiab sib dua li sib dua li cov ntawv txheem. … Kev luam tawm ntawm cov ntawv xov xwm tuaj yeem ua rau koj cov ntaub ntawv nthuav dav thiab tsis zoo; txawm li cas los xij nws yuav tsum tsis txhob siv rau cov ntaub ntawv tseem ceeb uas yuav tsum tau khaws cia ntev. Cov ntawv luam tawm tsis yog't kho, yog li ntawv ua nkig thiab daj dhau sijhawm.

Lub tshuab luam ntawv puas tuaj yeem luam tawm ntawm cov ntawv xov xwm?

Txhawm rau kom ua tiav cov khoom me me ntawm tus nqi pheej yig, cov ntawv xov xwm digital luam ntawv suav nrog luam tawm ib pawg ntawm nplooj ntawv siv lub tshuab luam ntawv loj, tshwj xeeb digital. Cov ntawv luam tawm rau cov ntawv xov xwm digital feem ntau yog luam tawm mus rau ib qho yob ntawm cov ntawv xov xwm uas raug txiav thiab muab tais rau hauv ib tus neeg ntawv xov xwm tom qab luam ntawv.

Daim ntawv twg yog siv rau kev luam ntawv xov xwm?

Newsprint yog tus nqi qis, cov ntawv tsis yog cov ntaub ntawv muaj feem ntau ntawm cov ntaub ntoo thiab feem ntau siv los luam cov ntawv xov xwm thiab lwm yam kev tshaj tawm thiab cov khoom siv tshaj tawm.

Koj puas tuaj yeem muab daim ntawv tso rau hauv lub tshuab luam ntawv?

Yog tias koj luam cov ntawv luam tawm, qhov zoo yuav tsis muaj teeb meem ntau dhau, yog li daim ntawv luam ntawv yooj yim yog qhov zoo txaus. Txawm li cas los xij, yog tias koj luam tawm cov ntawv kawg lossis cov xim nthuav qhia, thiab lwm yam, daim ntawv tuab dua, daim ntawv matted, raug pom zoo vim tias nws tso cai rau cov xim zoo nkauj thiab cov duab daws teeb meem zoo dua.

daim ntawv twg kuv lub tshuab luam ntawv tuaj yeem nqa tau?

A4 daim ntawv yog qhov feem ntau siv rau kev luam ntawv thiab ntsuas 210mm x 297mm. Qhov nodaim ntawv tuaj nyob rau hauv ntau qhov hnyav thiab nrog ob peb txheej sib txawv, txhais tau tias muaj ib daim ntawv A4 uas haum rau txhua txoj haujlwm luam ntawv.

Pom zoo:

Nthuav cov khoom
Cov menyuam yaus hnub nyoog li cas?
Nyeem ntxiv

Cov menyuam yaus hnub nyoog li cas?

Cov me nyuam pib dov thaum ntxov li 4 hli. Lawv yuav pob zeb los ntawm ib sab mus rau sab, ib qho kev taw qhia uas yog lub hauv paus rau dov. Lawv kuj tuaj yeem dov los ntawm plab mus rau sab nraub qaum. Thaum 6 lub hlis, cov menyuam mos feem ntau yuav dov mus rau ob qho kev qhia.

Kuv puas tuaj yeem cog txiv lws suav rau hauv lauj kaub?
Nyeem ntxiv

Kuv puas tuaj yeem cog txiv lws suav rau hauv lauj kaub?

Nroj 'Moneymaker' txiv lws suav rau hauv lub txaj zoo uas tau txais rau 6 lossis ntau teev ntawm hnub ci txhua hnub. Cog cov yub tob dua li lawv nyob hauv lawv cov lauj kaub yub, yog li hauv qab txheej ntawm nplooj tsuas yog saum cov av saum npoo.

Puas enthalpy ntawm vaporization tsis zoo?
Nyeem ntxiv

Puas enthalpy ntawm vaporization tsis zoo?

Lub enthalpy ntawm condensation (los yog cua sov ntawm condensation) yog los ntawm txhais tau tias sib npaug zos rau enthalpy ntawm vaporization nrog rau qhov opposite sign: enthalpy hloov ntawm vaporization yeej ib txwm zoo (kub yog absorbed los ntawm cov khoom), whereas enthalpy hloov pauv ntawm condensation ib txwm tsis zoo (kub tawm los ntawm cov khoom) … Puas yog entropy ntawm vaporization zoo lossis tsis zoo?