“圆束”的概念、定义、翻译、参考文献-科学参考

单词	圆束
释义	圆束 Mathematics ＞拓扑学与几何学＞射影几何学·仿射几何学＞释义 pencil of circles圆束 pencil of circles圆束^† sheaf of circles圆束
随便看	cathode cathode breakdown cathode-degenerated stage cathode design cathode electronics cathode emission cathode fabrication process cathode-follower mixer cathode-grid capacitance cathode-input amplifier cathode lock cathode luminescence cathodeluminescence cathode material cathode modulation cathode of sodium-ion battery cathodephone cathode ray cathode-ray oscillograph cathode ray tube cathode-ray tube cathode ray tube, CRT cathode-ray tube, CRT cathode ray tube display technique cathode sheath

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