| 摘要 |
<p>The gun mixes separately packed components for intimate ejection. The first cylinder is the mix and injection cylinder and the second the back pressure cylinder. The mix cylinder comprises entry, double-acting plunger and resilient whisk, whilst the back pressure cylinder has a single-acting, opposed plunger and is open at the rear to admit the whisk guide. The whisk slides so as to control the movement of the counter-plunger and thus the volume of the mix cylinder.</p> |
