单语范例（未经PONS编辑处理）
The marine processes include swash and backwash, with the larger storm induced waves creating stronger swash/backwash, which removes more eroded material.
en.wikipedia.org Whenever possible, backwash steps can be implemented using air and/or water to disrupt the biomat and recover flow.
en.wikipedia.org For a period of about one hour, the unpowered boat was washed back and forth as backwash pushed it away from the cliff.
en.wikipedia.org Slow sand filters and self-cleaning screen filters employ mechanisms other than backwashing to remove trapped particles.
en.wikipedia.org Most designs typically employ backwashing once per day of operation.
en.wikipedia.org