oil pump gun 油泵枪
bucket pump gun 戽斗式加油枪
Oreo Separation Pump Gun 奥利奥分离泵枪
oil l pump gun 油泵枪
gun-pump method 电击吸鱼法
N a repeating gun operated by a slide-action mechanism feeding ammunition from a magazine under the barrel into the breech 滑机操作的连发枪
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