“Pierce electron gun”的概念、定义、翻译、参考文献-科学参考

单词	Pierce electron gun
释义	Pierce electron gun Encyclopedia 工学电子枪释 Pierce electron gun皮尔斯电子枪采用美国工程师J.R.皮尔斯[注]提出的理论计算强流电子枪方法设计而成的电子枪。
随便看	geometrodynamics geometrography geometroid geometry Geometry and Tracking geometry axiom geometry deformation geometry in the large geometry of bundles geometry of circles geometry of compass geometry of complex domains geometry of connection geometry of diagrams geometry of elliptic curves geometry of fabric structures geometry of geodesics geometry of immersed manifolds geometry of lattice points geometry of motion geometry of nets geometry of numbers geometry of paths geometry of photomeasurement geometry of planes

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