等高控制 equal altitude control
- 等高种植及植物带对控制径流污染,效果极为明显;
Vegetative filter strip is an effective way to control diffuse pollution. - 坚持植树、种草,合理利用土地资源,修筑梯田,深耕土地,推广等高耕种技术,控制水土流失;
To plant trees and grasses persistently, to use soil resources effectively, and build terraces, deeply plough soil, spread technique of contour cultivation, control erosion; - 本文主要介绍一个由我们研制成功的适用于天气雷达等高平面显示的雷达天线自动控制系统。它由步进电机、微机和雷达伺服系统组合而成。
An automatic system to control the radar antenna for the Constant Altitude Plane Position Indicator is constructed, It consists of a step motor, a microcomputer and a radar servo system.
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