介绍氨汽提尿素装置中使用降膜式真空预浓缩器回收余热的情况和使用过程中遇到的问题及解决措施、经济效益。

This paper presents the application of down-film vacuum preconcentrator for heat recovery, puts forward the problems and measures against them during the application.

youdao

比较了方位向预滤波降采样方法与子孔径处理方法各自的优缺点。

The advantage and disadvantage of the method of azimuth pre-filtering and undersampling and the method of subaperture processing are compared.

youdao

综合孔径雷达(SAR)实时成像处理器，在满足分辨率的情况下，通过预滤波和降采样的方式降低数据率来满足系统处理带宽的要求。

Under the condition of meeting resolution, the SAR real-time imager can satisfy the demands of the processing band by pre-filter and down-sample.

youdao