“白垩”的概念、定义、翻译、参考文献-科学参考

单词	白垩
释义	白垩 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	underground loading equipment underground logistics system planning underground magnetic resonance imaging system underground material transpoter underground mechanized scaler underground mine development underground mine development choice underground mined-out areas underground mine emergency refuge system underground mine intelligent dispatch underground mining construction schedule planning underground mining machinery underground mining methods underground mining schedule planning underground multifunctional vehicle underground municipal facilities underground municipal facilities planning underground natural gas storage underground nuclear explosion underground nuclear test underground oil and water movement rule underground oil chamber underground oil depot survey underground oil storage comes from salt cavity underground oil storage facility

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