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雾滴的尺寸参数是评价植保机械性能的最主要质量指标。
Droplets size is an important index for estimating the performance of equipment for crop protection.
但是在植保技术推广体系、推广方法、服务体系上暴露出一些问题。
But some problems were emerged such as extension system, extension method and service system.
但是在植保技术推广体系、推广方法、服务体系上暴露出一些问题。
But some problems were emerged such as extension system, extension method and service system.
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