Rings must remain free to function properly and to maintain a good seal. Depositbuildup in the ring grooves and on piston lands must therefore be controlled.
活塞环必须保持自由以便能正确地运动及维持好的密封。在活塞环槽内和活塞岸上的沉积物必须被控制。
2
Others deposit thin filaments of polymer in order to build structures up.
其他打印机则铺洒稀薄的聚合丝来加强结构。
3
Protected surfaces can buildup a layer of off white calcareous deposit which will be difficult to remove.