| English | Chinese |
| acoustic filter A device employed to reject sound in a particular range of frequencies while passing sound in another range of frequencies | 滤声器 (一种用来过滤某个频率范围的声音同时允许另一个频率范围的声音通过的设备。) |
| filter cake Accumulated solids, wet or dry, generated by any filtration process, including accumulation on fabric filters in air filtering processes, or accumulation of wet solids in liquid filtering processes | 滤渣 (累积的固体，干的或者湿的，由过滤过程产生，包括在空气过滤过程中累积的纤维物质或者在液体过滤过程中累积的湿固体物质。) |
| image filtering A remote sensing term related to image enhancement that refers to the removal of a spatial component of electromagnetic radiation | 图像影像过滤 (与影像强化相关的遥感术语，指移除电磁辐射的空间成份。) |
| selection filter | 选择过滤器 |
| trickling filter A system of secondary sewage treatment which is similar to self-purification action of streams; it is more accurately a biological oxidizing bed; the effluent is placed on the stones in the bed and microorganisms present consume the solids as a food supply | 滴滤池 (一个二级污水处理系统，类似水流的自我净化行为；更准确地说是一个生物氧化床；污水被置于池床里的石头上，水中存在的微生物吸食固体物作为食物。) |
| trickling filter | 滴滤地 |
