The forming and maintaining of K-H instability was an important reason of causing vortex on the shear line maintain, strengthen, and causing rainstorm.

不稳定的形成和维持，是导致中尺度切变线上小尺度涡旋维持、加强，并产生强风暴雨的重要原因。

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Janata Dal's latest problems reflect the inherent instability of the coalition, which came to power in May last year under Gujral's predecessor, H.

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