electrostatic electron lens 静电型电子透镜 ; 静电电子透镜 electrostatic cylinder lens 静电圆柱透镜 electrostatic immersion lens 静电浸没透镜 ..
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equidiameter three-cylinder electrostatic unipotential lens 等径三圆筒单透镜
equi-diameter three-cylinder electrostatic unipotential lens 等径三圆筒单透镜
equi-diametral three-cylinder electrostatic unipotential lens 等径三圆筒单透镜
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