Dab tsi yog hom kev tuav tuav?
Tus kov pab tuav thiab tswj tus duav. Handles yog ob hom:
Ob qho tib si muaj kev txhawb nqa thaum khawb lossis khawb, qhov kev xaiv yog nyob ntawm tus kheej nyiam. | |
T-kuav tes (Crutch) | |
| Qhov style ntawm kov muab qhov zoo tshaj plaws tuav rau ob txhais tes loj heev thiab me me, uas tsis haum rau D-kov. Nws kuj yog qhov zoo tshaj plaws rau ob txhais tes tuav ntawm ob sab kom siv ntau zog downward thaum khawb los ntawm cov av hnyav. Lub T-kov feem ntau yog siv rau ntawm cov pas ntoo. Nws yog tsau rau qhov kawg ntawm cov ncej nrog cov kua nplaum thiab / lossis rivets. |
D-handle (YD-kov) | |
 | Ib tug D-kuav tes yuav ua tau los ntawm yas, ntoo, hlau, los yog fiberglass, los yog ib tug ua ke ntawm cov no. Tom qab ntawd los yog:
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 | Thaum xaiv tus duav, xyuam xim rau qhov muag muag. Nws yuav yog:
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 | Xwb, ua npuas ncauj tuav yog muaj nyob rau hauv ib tug neeg cov khoom nyob rau hauv feem ntau cov khw muag khoom kho vajtse. Lawv yog ib qho yooj yim los qhwv ib ncig ntawm sab saum toj ntawm tus kov. |
 | Los yog koj tuaj yeem ntsuas thiab txiav ib daim ntawm cov yeeb nkab ua npuas dej, ua kom lub ntsej muag muag, thiab khi nws nrog kua nplaum yog tias tsim nyog. |
Da dej tsis muaj tes | |
 | Qee lub shafts ntev tsis muaj tus kov thaum kawg. Qhov ntev ncej ntxiv muab qhov dav dua qhov dav rau kev txhim kho leverage thiab tswj thoob. Handleless shovels yog pab tau rau uprooting tob rooted nroj tsuag thiab ntxiv hnyav thaum shovels dump khoom rau hauv ib pawg. Cov ncej ntev kuj tso cai rau tus neeg siab tsis txhob khoov. |
Ntxiv
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