The ionizer needle 34 is preferably comprised of an electrically charged ionizer needle 34 that provides an electrical charge to particles that flow through the outlet channel 30a.
电离子针34优选地包括带电的电离子针34，用以向流经出口通道30a的微粒提供电荷。
The ionizer needle 34 is preferably comprised of an electrically charged ionizer needle 34 that provides an electrical charge to particles that flow through the outlet channel 30a.
电离子针34优选地包括带电的电离子针34，用以向流经出口通道30a的微粒提供电荷。
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