2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Plastic tarp invention yog ib tug evolution ntev, txawm li cas los xij. Nws pib nyob rau hauv 1932, thaum cov neeg Askiv pib sim tshuaj tiv thaiv nyob rau hauv siab. Ib ntawm 50 qhov kev sim siv ethylene.
Lub hauv paus chiv keeb ntawm tarpaulin yog dab tsi?
1. Hauv cov zej zog seafaring thaum ntxov, cov neeg tsav nkoj tau hu ua tarpaulins vim tias lawv tau pw ntawm lub lawj hauv qab cov ntaub muaj zog uas tsis muaj dej tsis muaj dej. Lo lus tarpaulin los ntawm tar thiab palling-lwm lub xyoo pua 17th rau cov ntawv siv los npog cov khoom ntawm nkoj.
tarps ua los ntawm xyoo 1930 yog dab tsi?
Cov ntaub pua tsev yog tsim los ntawm ntau yam ntaub ntawv, xws li plastics, polyester, roj hmab, thiab ntau yam ntaub ntawv.
Yuav ua li cas tarps ua ntej yas?
Nyob rau xyoo 20th xyoo pua, polyurethane hloov tar, ces canvas tau hloov los ntawm woven yas. Nyob rau tib lub sijhawm, peb tau pom ntau yam kev siv rau tarps, suav nrog: khaub ncaws, kos npe, chaw ua tsiaj txhu, tsev cog khoom, fume thiab plua plav ntim, hauv ob sab phlu, kev tiv thaiv kev ua si, thiab chaw pw hav zoov rau kev ua si lossis chaw nkaum.
tarpaulins ua li cas?
Lub chaw yog xoob xoob los ntawm cov ntaub qhwv ntawm polyethylene yas, nrog cov ntawv ntawm tib cov khoom sib txuas rau saum npoo. Qhov no tsim cov ntaub zoo li cov ntaub ntawv uas tiv taus stretching zoo nyob rau hauv tag nrho cov lus qhia thiab yog waterproof. Cov ntawv tuaj yeem yog cov polyethylene tsawg ntom ntom (LDPE) lossis siab ntom polyethylene (HDPE).
Pom zoo:
Thaum twg cov tswj tau tsim?
thawj gaming maub los yog paddle, nws tau tsim nyob rau hauv 1972 los ntawm ATARI. Tus thawj tswj hwm yog dab tsi? The Magnavox Odyssey yog thawj qhov kev ua lag luam ua lag luam, thiab nws cov tswj hwm tau ua tiav, tab sis siv tau.
Thaum twg tau ya pob tw tau tsim?
Raws li kev txhawb nqa sab nraud, lub dav hlau ya tau tsim tawm thaum lub sijhawm qub qub thiab tom qab ntawd tau vam meej nyob rau lub sijhawm Gothic lub sijhawm Gothic lub sijhawm Gothic kos duab yog a style ntawm medieval art uas tau tsim nyob rau sab qaum teb Fabkis tawm ntawm Romanesque art nyob rau hauv lub xyoo pua 12th AD, coj los ntawm kev txhim kho ntawm Gothic architecture.
Thaum twg tsim nyog tsim nyog?
Evan Edward Tsim Nyog Early College High School yog ib lub tsev kawm ntawv theem nrab nyob hauv cheeb tsam Sunnyside ntawm Houston, Texas, Tebchaws Meskas. Tsim nyog pab rau qib 9 txog 12 thiab yog ib feem ntawm Houston Independent School District.
Vim li cas tarpaulins xiav?
Lawv nyiam nrog cov neeg cog lus, cov neeg ua haujlwm tsim kho, cov vov tsev, cov neeg ua liaj ua teb, thiab cov neeg ua liaj ua teb. Blue tarps yog qhov yooj yim tshaj plaws ntawm daim ntawv tarp thiab pom tau yooj yim tshaj plaws. … Cov tarps xim no feem ntau cuam tshuam lub hnub ci es tsis nqus nws.
Thaum twg siv tsim nyog thiab tsim nyog?
3 Teb. Teem caij tam sim no: Nws tsim nyog tau them. Yav dhau los: Nws tsim nyog tau them. Tsim nyog yog VERB uas txhais tau tias tsim nyog lossis tsim nyog, lossis haum rau qee yam, feem ntau yog nqi zog lossis kev rau txim. Koj siv li cas tsim nyog thiab tsim nyog hauv kab lus?
