| 釋義 |
calcium /'kaelsiam; 'kaelsiam/ n soft white metal (symbol Ca), the chemical basis.of many compounds essential to life (occurs in bones and teeth, and forms part of limestone, marble and chalk). 鈣 (軟性白色金屬元素，化學符號 Ca, 為生命所必需之許多化合物的主要化學成分; 存在于骨骼及牙齒中，并構成石灰石、大理石及白堂之一部份成分) 。 ~ carbide n compound of ~ and carbon (CaC2), used with water to make acetylene gas (C2Ht). 碳化鈣 (加水可制乙煉即電石氣) 。 ~ hydroxide /hai'droksaid; hai'draksaid/ n slaked lime. 氫釵化鈣 (熟石灰) 。 |