“keeper”的概念、定义、翻译、参考文献-科学参考

单词	keeper
释义	keeper Physics A piece of soft iron used to bridge the poles of a permanent magnet when it is not in use. It reduces the leakage field and thus preserves the magnetization.
随便看	zepto- Zermelo, Ernst (1871–1953) Zermelo-Fraenkel axioms Zermelo-Fraenkel set theory Zermelo-König paradox Zernike, Frits zero zero-address instruction zero-age horizontal branch zero-age main sequence zero-base budgeting zero coupon bond zero crossing zero-crossing detector zero-dimensional(of a space) zero-divisor zero element zero energy state zero error zero function zero g(ravity) zero growth zero IF zero interest rate zero-length spring

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