Tank gun and piston pump: what they have in common

1. Step 1. Tank gun — has part — Recoil mechanism. Recoil mechanisms.
2. Step 2. Recoil mechanism — works like — Shock absorber. The same principle of hydraulic damping.
3. Step 3. Shock absorber — has part — Piston. Inside, a piston moves in oil.
4. Step 4. Piston — is part of — Piston pump. The piston draws in and pushes out liquid.

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