anomalous change of high-level jetstream
...高空急流异变 螺旋度场 散度场 [gap=1657]m caused by cold air crossing mountains,dynamical structure,geopotential height,anomalous change of high-level jetstream,divergence,helicity ..
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anomalous change of high-level jetstream
高空急流异常变化
以上为机器翻译结果，长、整句建议使用 人工翻译 。