“pencil beam”的概念、定义、翻译、参考文献-科学参考

单词	pencil beam
释义	pencil beam 铅笔状射束锐方向性射束尖向束笔形波束
随便看	setup time set-up time set-up unit set-up wheel set value set-value adjuster set-valued mapping set value of controlled variable set width set work set wrench set yielding seuse finder seven-barks seven-bearing crankshaft seven-bit byte seven by seven cable seven core seven-day disease seven-day notice deposit seven-eighths rule seven-element lens sevenfold seven formulae seven important portals

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