Muaj ntau ntau yam tsis siv neeg lub tshuab ua kom yuag, uas tuaj yeem siv rau kev ntsuas qhov hnyav ntawm ntau yam khoom, xws li: lub thawv tshuaj xyuas kom paub qhov hnyav, lub hnab ntim khoom noj khoom haus kom pom qhov hnyav, lub thawv tshawb pom cov dej haus lub cev, lub hiav txwv dib / abalone thiab lwm yam khoom muaj ntau qhov hnyav. tsis siv neeg sorting.
Cov khoom lag luam hauv qab no yog xav tau rau kev xaiv lub tshuab ntsuas kub tsis siv neeg:
1. Cov khoom lag luam loj (piv txwv: ntev 15 ~ 18cm * dav 10 ~ 12cm * qhov siab 5 ~ 7cm)
2. Cov khoom lag luam nyob hauv qhov hnyav ntau (piv txwv: 300 ~ 1000 grams)
3. Cov xwm txheej ntawm cov khoom (lub npe khoom, hom, thiab seb nws yog qhov tshwj xeeb)
4. Kev ceev ceev (pes tsawg zaus hauv ib feeb lossis muab ceev nrawm)
5. Kev kuaj pom qhov tseeb (muaj pes tsawg grams ntxiv lossis rho tawm)
