Zidebe zoletsa kugundana zimayikidwa m'malo omwe muli zoopsa zachitetezo monga kukhota kwa misewu, zolowera ndi zotuluka, zilumba zolipirira, malekezero a njanji ya mlatho, zopimira mlatho, ndi kutseguka kwa tunnel.Ndi malo otetezedwa ozungulira omwe amakhala ngati machenjezo komanso kugwedezeka kwa buffer, pakachitika ngozi ...
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