On the basis of the plasma conditions in LEO. We adopt plasma thin sheath model and calculate ion collection current.
本文根据LEO中等离子体温度低、密度高、德拜长度小的特点，采用薄鞘层近似，计算了离子收集电流；
The charge exchange and elastic collision between ion and neutral atoms and the collection and Coulomb scattering of ion on dust grains are considered.
当离子在鞘层运动时，考虑离子与中性原子之间的电荷交换和弹性碰撞，以及离子被尘粒的库仑散射和收集作用。
The charge exchange and elastic collision between ion and neutral atoms and the collection and Coulomb scattering of ion on dust grains are considered.
当离子在鞘层运动时，考虑离子与中性原子之间的电荷交换和弹性碰撞，以及离子被尘粒的库仑散射和收集作用。
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