Pvk orange
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Sistimi ea likhoho ea indasteri e nang le tanka ea khatello
Phokotso ea metsi a pruly ea metsi a hloekileng ea mollo pvk e kopanya mokhoa, o sebetsa hantle le tšebeliso ea likarolo tse tsoetseng pele tse fetohang. Likhetho tsa bohlokoa tsa pompo e fapaneng le tanka ea lijo tsa diafragm tsa diaphragm e etsa khetho e ntle ea ho netefatsa phepelo ea metsi e tšepahalang le e sebetsang ea mollo maemong a fapaneng.