“chalk”的概念、定义、翻译、参考文献-科学参考

单词	chalk
释义	chalk Encyclopedia 工学[矿物材料]释 chalk白垩主要由显微粒状石灰质岩石和海生生物（如贝壳、有孔虫等）的遗骸以及颗粒细小（0.01～0.0005毫米）的方解石组成的一种生物化学沉积岩。理学白垩释 chalk白垩白色疏松土状的石灰岩。
随便看	excision enzyme excision homomorphism excision isomorphism excision isomorphism theorem excision mapping excision of anal fissure excision of external hemorrhoid excision property excision repair excision theorem excisive couple excitability excitability of myocardium excitable cell excitable systems excitable tissue excitant excitation excitation and deexcitation excitation at break excitation at make excitation by electron impact excitation conduction excitation-contraction coupling excitation cross-section

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