Qhov txawv ntawm ib puag ncig thiab ib puag ncig rov qab yog dab tsi?

Cov txheej txheem:

Qhov txawv ntawm ib puag ncig thiab ib puag ncig rov qab yog dab tsi?
Qhov txawv ntawm ib puag ncig thiab ib puag ncig rov qab yog dab tsi?
Anonim

Muaj ob lub suab hais lus rau ob sab ntawm chav. Cov neeg hais lus muab tso rau ntawm ib sab lossis me ntsis tom qab qhov chaw mloog, xws li lub suab ntawd tig mus rau cov neeg mloog. Cov neeg hais lus rov qab tau muab tso rau tom qab sab ib puag ncig cov neeg hais lus thiab thaj chaw mloog.

ncig rov qab txhais li cas?

"Sab nraub qaum" yog lo lus siv rau khub ntawm cov neeg hais lus nyob ib puag ncig- as opposed to ob khub (sab) ib puag ncig cov neeg hais lus - hauv 7.1-channel teeb- nce. Hauv 5.1-channel teeb tsa, tsuas muaj ib khub ntawm ib puag ncig (thiab tsis muaj lub nraub qaum ib puag ncig).

Qhov twg tseem ceeb dua puag ncig lossis ncig rov qab?

Yog hais tias nws yog ib lo lus nug ntawm qhov twg yuav muab ntxiv $$$ rau cov neeg hais lus zoo, nws yog nyob rau hauv side surrounds. Lawv siv ntau zaus thiab siv zog ntau dua li rears. Yog hais tias ntau lub channel suab yog ib yam rau koj, ces lub rears tsuas yog ib qho tseem ceeb dua, thiab kuv xav txog lawv ntau sib npaug.

Tus hais lus ib puag ncig rov qab tseem ceeb npaum li cas?

Rab ib puag ncig cov neeg hais lus tsim nyog yog tias koj xav tau ib qho kev paub suab nrov. Nws ntes cov suab uas pab teeb tsa qhov chaw thiab muab qhov tob ntxiv rau lub suab. Lub suab nrov tom qab hauv ib lub tsev lossis lub suab tsis paub meej ntawm lub suab tau hais ntau dua nrog tus hais lus nyob ib puag ncig.

Tus hais lus twg yog qhov tseem ceeb tshaj plaws hauv lub suab?

Nkauj hmoob channeltus neeg hais lus yog tus hais lus tseem ceeb tshaj plaws hauv kev teeb tsa suab ib puag ncig vim nws ua haujlwm feem ntau. Feem ntau ntawm kev nqis tes ua, thiab kev sib tham, hauv zaj yeeb yaj kiab, tshwm sim pem hauv ntej thiab nruab nrab ntawm koj lub vijtsam, txhais tau hais tias qhov chaw nruab nrab yog tus tsim tawm.

Pom zoo:

Nthuav cov khoom
Puas talcum hmoov yaj hauv dej?
Nyeem ntxiv

Puas talcum hmoov yaj hauv dej?

Talc yog xyaum insoluble hauv dej, dilute ntxhia acids, thiab dilute daws ntawm alkali halides thiab alkaline hydroxides. Nws yog soluble hauv kub concentrated phosphoric acid. Vim li cas talcum hmoov tsis yaj hauv dej? Tsim Hauv Tsev.

Vim li cas thiaj siv schlieren photography?
Nyeem ntxiv

Vim li cas thiaj siv schlieren photography?

Schlieren kev yees duab yog txheej txheem pom kev uas yog siv los yees duab cov dej ntws ntawm qhov sib txawv. Tsim los ntawm German physicist lub yim hli ntuj Toepler nyob rau hauv 1864 los kawm supersonic motion, nws yog dav siv nyob rau hauv aeronautical engineering los yees duab cov ntws ntawm huab cua nyob ib ncig ntawm cov khoom.

Yuav rov hais dua email li cas?
Nyeem ntxiv

Yuav rov hais dua email li cas?

Koj tuaj yeem sim: "Kuv tab tom ua raws li hauv qab no" lossis "Ua raws li qhov no [thov / nug / haujlwm]" "Kuv rov qab rau hauv qab no" lossis "Circling rov qab rau ntawm no [thov / nug / assignment]