The flight failed to carry out the cloud seeding operation.

这次飞行未能进行播云作业。

There are three modes of cloud seeding: static , dynamic and hygroscopic .

有三种方式可以实现人工降雨，静态的，动态的，和吸湿。

In the paper, application in orographic cloud seeding was mainly introduced.

本文主要介绍地面碘化银烟炉在山区增雨试验中的应用。

The unrelenting drought has boosted southern China's demand for cloud seeding rockets.

无情的旱灾催发了中国人工降雨火箭的需求。

In response, cloud seeding operations are being carried out in 16 cities and counties.

为了应对这种天气，16个城市和县实行人工降雨。