calculusn.微积分；算法；结石calculus bronchialis支气管(结)石calculus of relations关系演算calculus of variation变分法Calculus Elementaried微积分初等化Calculus of bile duct胆管结石calculus surface index牙面牙石指数calculus basic formula微积分基本公式Calculus Boris Sativus体外培育牛黄calculus of variations变分学,变分法,变分计算calculus supragingival[医] 龈上结石