求翻译：在雨污吹刮装置的入口前，设有 压辊装置、光电测高装置。光电测高装置由光电管、接收器、 组合支架等组成。设置每10mm一档，共设置4档，钢板挡住光电多少时清扫室中刮扫装置、清扫滚刷、收丸螺旋、吹丸尘装置的升降制动电机，通过制动电机上的脉冲记数与光电测高上的脉冲记数的对应关系，来实现较为精确的高度调整。是什么意思？

In front of the entrance of rain the dirt Chuigua device features the press roller device, photoelectric altimetry device. Altimeter devices by photoelectric the photocell receiver, the combination bracket. Set a grade for every 10mm, were set to file wiping device steel plate blocking the photoelec

blowing dirt out in the rain the front of the entrance, and there is pressure, and electro-optical-unit. Optical-unit by photocells, receiver, combined stand. Set up a document every 10 mm, and a total of 4 document set, steel block is how much photo-clean room in the cleaning, cleaning brush, blow

Blows in the rain dirt blows in front of the installment entrance, is equipped with the drag roll installment, the light electrical measurement high installment.The light electrical measurement high installment by the electric eye, the receiver, the combination support and so on is composed.Establis

In the rain the entrances to dirty blow-scraping devices, equipped with pressing roller device, opto-electronic measuring devices. Photoelectric high by photoelectric tube, receiver, composite brackets and so on. Each 10MM document, total 4, plate blocking optical which scrape sweep devices in the c