hail prevention的用法和樣例：
例句
- They made these indigenous rockets to disperse clouds and prevent hail storms.
他們製造這些土火箭，是為了驅雲防雹。 - The hail proof communication network is severely disturbed by the same frequency and additional distortion of the co-adjustment which affects the sufficient work of the system.
目前防雹通信網路受到嚴重的同頻干擾以及附帶的互調失真，已經成為影響該系統有效工作的一大難題。
