- travelling-wave tube
- 移行: divide with a hyphen at the ...
- 波管: wave duct
- 移行波: travelling wave
- 行波管: progressive wave tube; traveling-wave tube; travelling wave valve; travelling-wave pipe; travelling-wave tube; travellingwavetube; travellingwavevalve; twt traveling wave tube; twt travelling wave tube
- m 型行波管: m type twt
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