self-cleaning action的意思|示意

The valve is rated for continuous duty. 222c Valves have a short stroke water piston for fast response and dual guide areas have self-cleaning action.

该电磁阀可进行连续工作。该222 C阀还有一个短冲程水活塞用于作出快速反应和有自我清洁功能的双引导区域。

High precision dynamic separating unit capable of self-cleaning action, allowing choice of very small size grinding media.

高精密的动态分离结构，可选配小粒径的研磨珠，并具有自动清洁功能。

There is enough environment capability and self-cleaning action in this area, so the investigation area can be regarded as a non-polluted area.

长江口区及邻近海域具有较大环境容量和自净能力，故该调查区基本可视为未污染区。