Kev Sau Ntawv: Lub Platform qauv feem ntau yog suav txog kev txiav txim siab, cov kab teeb thawj thiab theem nrab, cov ciav hlau, thiab cov tsheb ciav hlau, thiab lwm yam, thiab lwm yam.
Kev faib tawm:
Raws li kev siv cov cai yuav tsum tau, nws tuaj yeem faib ua cov platform thiab sab nraum zoov, cov pob zeb ua haujlwm ntau lawm, thiab nruab nrab thiab hnyav ua haujlwm platform.
Raws li cov qauv kev pabcuam sib txawv, cov qauv platform tuaj yeem muab faib ua:
1. A platform directly placed on the tripod or corbel of the plant column, which usually functions as a safe passage or a simple medium-sized operating platform.
2. Ib lub platform txhawb nqa ntawm nplooj ntoo lossis tsim phab ntsa ntawm ib sab thiab kem ywj pheej rau sab nraud.
3. Ib lub platform txhawb nqa ntawm cov khoom loj.
4. Txhua tus muaj kev ywj pheej platform.
Rau cov platform uas yuav raug rau cov khoom siv loj heev lossis muaj cov khoom siv hnyav heev, nws raug nquahu kom tsim lawv cais tawm ntawm kem ntoo thiab txhawb nqa ncaj qha rau sab nraud.
