“pith knot”的概念、定义、翻译、参考文献-科学参考

单词	pith knot
释义	pith knot [`pith ´nät] ^MATERIALS A small knot with a diameter of 0.25 inch (0.64 centimeter) or less in a wood board that has a pith hole.
随便看	nibble nibbling nicarbing niccolite niche niche glacier Nichol's chart Nicholson's hydrometer Nichols radiometer nick nickase nickel nickel-63 nickel acetate nickel-aluminum bronze nickel ammonium sulfate nickel-antimony glance nickel arsenate nickel bloom nickel brass nickel bronze nickel-cadmium battery nickel carbonate nickel carbonyl nickel cast iron

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