“hand lead”的概念、定义、翻译、参考文献-科学参考

单词	hand lead
释义	hand lead [`hand ´led] ^ENGINEERING A light sounding lead (7-14 pounds or 3-6 kilograms) usually having a line not more than 25 fathoms (46 meters) in length.
随便看	harmatan harmattan harmetan harmful interference harmless-depth theory harmonic harmonica bug harmonic analysis harmonic analyzer harmonic antenna harmonic attenuation harmonic component harmonic conjugates harmonic content harmonic conversion transducer harmonic decline harmonic detector harmonic distortion harmonic division harmonic drive harmonic echo harmonic fields harmonic filter harmonic folding harmonic frequency

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