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Also available:
World English Dictionary
Dictionnaire Français
electron lens
e·lec·tron lens
(
plural
e·lec·tron lens·es
)
noun
Definition:
device to control an electron beam:
a device that creates an electric or magnetic field around the path of an electron beam so that the beam may be focused
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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