Lub pob tshab yas square lub thawv yuav inevitably muaj stricter yuav tsum nyob rau saum npoo zoo ntawm cov khoom yas vim lub teeb ci siab dua. Nws yuav tsum tsis muaj qhov cim dab tsi, qhov hws, los yog ntxuav hniav dawb. Vim muaj qhov tsis xws luag xws li taws kub nnyiab ya, dub pob, tshem tawm tsis zoo, thiab lub ntsej muag tsis zoo, thaum lub sijhawm tag nrho cov txheej txheem kev txhaj tshuaj ntawm Su Liang' s kem, peb yuav tsum them zoo mloog thiab nruj raws li kev tsim cov khoom siv raw, khoom siv, pwm. , thiab cov khoom lag luam. Thib ob, feem ntau ntawm cov pob tshab pob tshab muaj qhov chaw siab siab thiab ua tsis tau zoo. Yog li, txhawm rau kom ntseeg tau tias cov nplaim zoo ntawm cov khoom, cov txheej txheem cov txheej txheem xws li kev kub, ntsuas qhov siab, thiab kev txhaj tshuaj nrawm yuav tsum tau kho kom zoo kom cov pwm tuaj yeem puv thaum cov yas txhaj tshuaj. Nws yuav tsis ua rau sab hauv ntxhov siab thiab ua rau cov khoom deformation thiab tawg.
Lub pob tshab yas square lub thawv yuav tsum xub muaj lub siab pob tshab, ua raws li qee yam muaj zog thiab puas ua hauj, cuam tshuam tiv taus, tiv taus thaum tshav kub kub, tshuaj lom neeg kuj, tus nqi dej, thiab tsuas yog tom qab ntawd nws tuaj yeem siv rau hauv qhov kev xav tau ntawm pob tshab yog tsis hloov pauv rau lub sijhawm ntev.
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