1. Kev tshem tawm kev tshem tawm
CovLED mesh npolub cev tau teeb tsa los ntawm cov nqes thiab kab teeb dai, thiab lub thawv pob tshab tau txuas nrog los ntawm kev xauv nrawm lossis txuas daim; siv rau theem, khw muag khoom qhov rai thiab lwm yam haujlwm;
2. Taw qhia-txhawb kev teeb tsa
Lub thawv lub cev tau tsau rau ntawm lub pob tw ntawm iav kab hlau rhuav phab ntsa los ntawm kev sib xyaw ua ke; nws yog siv hauv thaj tsam ntawm cov vaj huam sib luag iav kab hlau rhuav phab ntsa;
3. Hom kev teeb tsa
Siv cov ntsia hlau sib txuas los txhim kho lub thawv ntawv ncaj qha rau ntawm lub keel ntawm iav kab hlau rhuav phab ntsa yam tsis muaj cov qauv hlau; nws yog siv hauv thaj tsam ntawm cov vaj huam sib luag iav kab hlau rhuav phab ntsa;
4. Txhim kho qhov chaw thau khoom
Covpob tshab npolub thawv tau tsau rau ntawm Japanese thav duab los ntawm daim txuas; nws yog siv hauv chav ua yeeb yam, pib ua yeeb yam, sib tham hauv xov tooj cua thiab lwm yam haujlwm;