Shovel thiab shovel yog lub npe scientific, tsis yog cov lus hauv zos.
shovel yog hais txog cov cuab yeej tes uas muaj lub thoob thoob los yog lub cev me ntsis concave shovel nrog ib tug kov ntawm nws, siv rau khawb los yog pov cov ntaub ntawv (xws li av, thee, nplej, thiab lwm yam). Xws li cov cuab yeej ua liaj ua teb (shovel thiab shovel), cov khoom siv hauv chav ua noj, cov khoom siv vaj tsev, cov khoom ua si menyuam yaus, thiab lwm yam.
Shovel manufacturers qhia rau koj paub qhov txawv ntawm shovel thiab duav:
Cov duab sib txawv
1. Txauv
Cov duab ntawm lub duav yog tiaj tus.
2. Dauv
Cov duab ntawm lub duav yog puag ncig.
Lub luag haujlwm txawv
1. Txauv
Vim tias lub shovel muaj lub qhov ncauj tiaj tus, thaj chaw txheeb ze yog qhov loj, thiab thaum xaiv khoom, nws tuaj yeem khaws tau ntau dua. Tab sis nws tsis tuaj yeem siv los khawb khoom.
2. Dauv
Vim hais tias lub duav yog taw tes, thaj chaw txheeb ze yog me me, thiab thaum xaiv cov khoom, cov khoom khaws kuj me me. Tab sis nws tuaj yeem siv los khawb khoom.
Kev siv sib txawv
1. Txauv
Cov khauj khaum feem ntau yog siv rau pinching khoom, tig av, thauj khoom thiab tshem tawm cov tsheb thauj khoom, thiab lwm yam.
2. Dauv
Cov khauj khaum feem ntau yog siv rau kev khawb av, khawb dej, khaws cov kwj deg, thiab shoveling daus.
