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1·One theory is that it is caused by charge-inducing collisions in volcanic dust.

有推论说，由于火山尘埃带电物质相互撞击而诱发火山闪电。

2·Secondly, the electrostatic behavior in a polyethylene gas-solid fluidized bed with different charge inducing agent added is studied.

第二，研究了静电引发剂对气固流化床静电势分布的变化的影响。