Kuv puas tuaj yeem siv ntsej muag rwb thaiv tsev ntawm phab ntsa sab hauv?

Cov txheej txheem:

Kuv puas tuaj yeem siv ntsej muag rwb thaiv tsev ntawm phab ntsa sab hauv?
Kuv puas tuaj yeem siv ntsej muag rwb thaiv tsev ntawm phab ntsa sab hauv?
Anonim

Faced, lossis hom ntawv nrog ntawv, feem ntau yog siv hauv thawj zaug, xws li hauv phab ntsa, qab nthab, pem teb, thiab hauv qhov chaw nkag. Txhua lub sij hawm koj siv lub ntsej muag rwb thaiv tsev, daim ntawv yuav tsum yog facing mus rau qhov chaw nyob. … Unfaced kuj yog qhov kev xaiv zoo tshaj plaws rau kev ntxiv soundproofing rau sab hauv phab ntsa.

Puas yog siv Kraft ntsej muag rwb thaiv tsev ntawm phab ntsa sab hauv?

Ib lub phab ntsa sab hauv cais lub dav hlau da dej ntawm peb chav ua noj tshiab. Kuv yuav kraft ntsib R-13 rwb thaiv tsev rau txhua yam, sab nrauv thiab sab hauv phab ntsa. Ib tug neeg ntawm lub tsev muag khoom hais tias nws yog tsis yog lub tswv yim zoo los siv kraftntsib kev thaiv cov phab ntsa sab hauv vim tias phab ntsa xav tau "ua pa".

Yuav ua li cas rwb thaiv tsev kuv yuav tsum siv rau sab hauv phab ntsa?

Fiberglass batts, ua npuas ncauj lossis cellulose tuaj yeem siv los thaiv cov phab ntsa sab hauv. Qhov thib peb cheeb tsam uas xav tau kev rwb thaiv tsev zoo yog cov plag tsev. Rigid ua npuas ncauj boards thiab tsoos fiberglass batts ua hauj lwm zoo tshaj plaws nyob rau hauv pem teb.

Kuv puas siv ntsej muag lossis tsis pom ntsej muag?

Faced rwb thaiv tsev yog zoo tagnrho rau qab nthab, pem teb, attic, tiav hauv qab daus, thiab sab nrauv ntog. Tsis muaj kev tiv thaivmuaj txiaj ntsig zoo rau kev txo suab nrov, kev txuag hluav taws xob, thiab khaws cov pa phem tawm.

Puas tsim nyog muab cov rwb thaiv tsev rau hauv cov phab ntsa sab hauv?

Txawm tias tsis muaj qhov rwb thaiv tsev tuaj yeem ua kom lub suab tsis zoo hauv chav, rwb thaiv tsev sab hauv tuaj yeemtxo suab nrov nrov. Rau lub teeb pw tsaug zog, suab dampening yog tshwj xeeb tshaj yog pab tau nyob rau hauv cov phab ntsa ntawm chav pw. Tsis tas li ntawd, kev rwb thaiv tsev sab hauv tuaj yeem ua rau muaj kev ceev ntiag tug ntawm cov chav xws li chav dej.

Pom zoo:

Nthuav cov khoom
Puas yog homomorphism tib yam li isomorphism?
Nyeem ntxiv

Puas yog homomorphism tib yam li isomorphism?

Isomorphism yog homomorphism tshwj xeeb. Greek keeb kwm "homo" thiab "morph" ua ke txhais tau tias "zoo tib yam." Muaj ob qhov xwm txheej uas homomorphisms tshwm sim: thaum ib pab pawg yog ib pawg ntawm lwm pawg;

Yuav tau sawv los yog tshwm sim?
Nyeem ntxiv

Yuav tau sawv los yog tshwm sim?

Peb hom tshwm sim yog arise, sawv, arisen. Nws yog siv hauv cov ntsiab lus tseem ceeb: Ib lub sijhawm tshwm sim thiab nws txiav txim siab los ua txoj haujlwm hauv Brussels. Ib qho teeb meem tshwm sim nrog kuv daim ntawv hla tebchaws. Koj siv arose hauv kab lus li cas?

Nyob hauv qab ceg cov leeg nqaij gastrocnemius khoov?
Nyeem ntxiv

Nyob hauv qab ceg cov leeg nqaij gastrocnemius khoov?

Cov leeg nqaij gastrocnemius flexes ko taw ntawm pob qij txha- uas yog nws ua rau taw taw ko taw nqes los ntawm khoov nws ntawm pob taws pob taws, xws li thaum koj sawv ntawm koj. cov ntiv taw. Qhov kev txiav txim no hu ua plantar flexion. Lub gastrocnemius kuj flexes ceg ntawm lub hauv caug sib koom.