Apparently the effects of jet planes punching through clouds are similar to "cloud seeding" operations, where ice crystals are created in the atmosphere to make it rain.

显然，飞机穿过云层与“云种散播效应”类似，在空中形成的冰晶会导致降雨。

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Regardless of the Moscow authorities' final decision on snow cloud seeding, Russia remains one of the few nations where weather control is more than using anti-hail cannons and battling droughts.

无论莫斯科当局是否就干预下雪云层做出最后的决定，俄罗斯仍然是为数不多的国家之一，他们对付冰雹和干旱使用的手段远远不止加农炮。

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Cloud-seeding is a technique to enhance rainfall by introducing particles - often silver iodide crystals - into cloud systems, to help condense water vapor into raindrops.

云的催化是指将催化剂颗粒打入云中使云中的水蒸汽凝聚成水滴，从而实现降雨的技术，催化剂颗粒通常为碘化银。

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Scientists say that cloud-seeding is less potent than many people believe, however.

WSJ: Blizzard Renews Storm Over China Making Snow

She flew missions delivering relief supplies after the 2008 Sichuan earthquake, as well as cloud-seeding aircraft to ensure clear skies over Beijing during the Olympics.

BBC: China's female astronaut quandary

Though rain is indeed falling, it is unclear to what extent the cloud-seeding operations have increased the rainfall and whether it will be enough to pull Venezuela out of its electricity crisis.

FORBES: Venezuela: Recent Rain And Claims of Cloud Seeding