Ol i save wokim 'sucker rod' long ain, we i gat inap strong na i no inap bagarap. Em i konektim long oil pam, na 'reciprocating motion' bilong pam i save kirapim stik i go antap na i go daun, na long dispela rot em i save pamim oil. Moa yet, taim pam i go antap, 'sucker rod' i go antap wantaim, na pulim oil i kam insait long pam. Taim pam i go daun, 'sucker rod' i save subim oil i go antap, na bihain em i save rausim oil i go antap.
FAQ

Q1: Olsem wanem wanpela 'sucker rod' i wok insait long wanpela 'rod pumping system'?
Q2: Wanem bikpela wok bilong 'sucker rod'?
Q3: Wanem samting i save kamap long taim bilong 'upstroke' na 'downstroke' long 'rod pumping'?
Q4: Wanem ol hevi we i save kamap long wanpela 'sucker rod string'?
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