Tshaj plaws, lub saw saw yog thawj tsim los pab kev yug menyuam - yog, koj nyeem qhov raug. Ua ntej qhov kev phais mob tau ua ib qho kev xyaum, tag nrho cov fetuses yuav tsum dhau los ntawm txoj kev yug me nyuam. … Txhawm rau ua kom cov txheej txheem yooj yim dua, ob tus kws phais neeg Scots tau tsim lub saw saw hauv xyoo pua 18.
Vim li cas chainsaw tsim rau kev yug menyuam?
Cov txheej txheem yog thawj zaug ua los ntawm tes siv riam me me thiab pom kom tshem cov pob txha. … Ob tug kws kho mob tau tsim lub saw saw hauv xyoo 1780 kom tshem tawm cov pob txha hauv plab kom yooj yim dua thiab siv sijhawm tsawg dua thaum yug menyuam.
Thaum twg yog lub tshuab hluav taws xob chainsaw tsim?
In 1929, Stihl patented thawj lub tshuab hluav taws xob siv roj av hu ua lub tshuab txiav ntoo. Cov no yog thawj qhov kev vam meej patents rau tes tuav mobile chainsaws tsim rau woodcutting. Andreas Stihl feem ntau tau lees paub tias yog tus tsim khoom ntawm lub xov tooj ntawm tes thiab lub cev muaj zog chainsaw.
Dab tsi yog hom chainsaw zoo tshaj plaws?
Zoo tshaj Chainsaws (Hloov Kho Npe)
- Poulan Pro PR5020 Chainsaw. …
- Husqvarna 460 Chainsaw. …
- Makita XCU02PT1 Chainsaw. …
- DEWALT DCCS690M1 Chainsaw. …
- Greenworks Pro GCS80420 Chainsaw. …
- Greenworks 2022 Chainsaw. 14-nti Electric Corded. …
- Remington RM1645 Chainsaw. 16-nti Electric Corded. …
- WORX WG304. 1Chainsaw.
Dab tsi yog chainsaw qub?
thawj chainsaw yog tsim los ntawm German orthopaedist Bernhard Heine nyob rau hauv 1830. Nws hu ua nws lub osteotome, los ntawm Greek osteo (pob txha) thiab tome los yog tomi (txiav); lus, tus pob txha. Lub chainsaw no, nrog rau ntau tus ua raws, tau siv rau kev kho mob.
