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非直接加热阴极式离子源的阴极被至少一个杆或钉支撑。
A cathode in an indirectly heated cathode ion source is supported by at least one rod or pin.
youdao
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非直接加热阴极式离子源的阴极被至少一个杆或钉支撑。
A cathode in an indirectly heated cathode ion source is supported by at least one rod or pin.
youdao