yǔ xiàn ㄧㄩˇ ㄒㄧㄢˋ 雨霰
促进雨霰转化过程，使雹胚浓度增加，并且减少过冷雨滴，抑制冰雹碰冻过冷雨滴的增长；
Ice seeding prompted the conversion rate of rain to graupels, reduced the supercooled raindrops and suppressed hailstone growth by accretion.
十年来不管是晴是雨，是霰是雪，他都坚守岗位，从未离开过广场。
He had it for ten years in sun, rain, sleet, snow. Never left the square.
十年来不管是晴是雨，是霰是雪，他都坚守岗位，从未离开过广场。
He had it for ten years in sun, rain, sleet, snow. Never left the square. And his job was this.
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