该方法不需要安全或者等幂.This method does not need to be either safe or idempotent.这个矩阵是等幂的.This matrix is idempotent.利用差分论证了等幂和一般公式的唯一性,它可用插值法构造,也可用待定系数法求得.It can be structured by interpolation or be got by method of undetermined c...
如果潮湿发霉的建筑令你生病了，霉菌很可能是病因。If damp, musty buildings make you ill, mould is probably the cause.瓶盖上有一层薄薄的霉菌.There is a film of mould over the bottle cap.他把霉菌从奶酪上切掉。He cut the mould off a piece of cheese....