ramming piston的用法和樣例：
例句
- Dual-Pressure Regulation System Modeling, Simulation and Thermal Analysis based on Swing Plate Piston Pump.
基於斜盤柱塞泵的雙壓力調節系統的建模以及熱分析。 - This pump range is supplemented by gear pumps providing virtually pulseless flows and piston pumps for very accurate metering and highly corrosive fluids.
泵產品範圍還包括提供無脈衝流量的齒輪泵，以及提供精確計量和適用於強腐蝕性流體的柱塞泵。
