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150 Chapter 1 The History and Future of Computers 3.2 Boolean Algebra Table 3-2 Distributivity Idempotency Absorption laws 分配律同一律吸收律 a=ab+ac a+= a+a=a aa=a a+ab=a a=a'=a'b''=a'+b' DeMorgan's laws德摩根定理计算机专业英语 1-151 Chapter 1 The History and Future of Computers 3.2 Boolean Algebra Since a finite set of n elements has exactly 2n subsets, and it can be shown that the finite Boolean algebras are precisely the finite set algebras, each finite Boolean algebra consists of exactly 2n elements for some integer n.

由于n个元素的有限集有且只有个子集由于个元素的有限集有且只有2n个子集，而且很显然有限布个元素的有限集有且只有个子集，尔代数一定是有限集合代数，所以对某个整数n而言而言，尔代数一定是有限集合代数，所以对某个整数而言，每个有限布尔代数也有且只有2n个元素。例如，上文定义的集合T的限布尔代数也有且只有个元素。

31 Chapter 3 Number Systems and Boolean Algebra 3.2 Boolean Algebra Table 3-2 Distributivity Idempotency Absorption laws 分配律同一律吸收律 a=ab+ac a+= a+a=a aa=a a+ab=a a=a'=a'b''=a'+b' DeMorgan's laws德摩根定理计算机专业英语 3-32 Chapter 3 Number Systems and Boolean Algebra 3.2 Boolean Algebra Since a finite set of n elements has exactly 2n subsets, and it can be shown that the finite Boolean algebras are precisely the finite set algebras, each finite Boolean algebra consists of exactly 2n elements for some integer n.

由于n个元素的有限集有且只有个子集由于个元素的有限集有且只有2n个子集，而且很显然有限布个元素的有限集有且只有个子集，尔代数一定是有限集合代数，所以对某个整数n而言而言，尔代数一定是有限集合代数，所以对某个整数而言，每个有限布尔代数也有且只有2n个元素。例如，上文定义的集合T的限布尔代数也有且只有个元素。

If the n-digit number 22…22 is divisible by 9, find the smallest possible value of n.

若n位数22…22可被9整除，求n的最小可能值。

Justify the correctness of the recursive division algorithm given in page 15, and show that it takes time O(n^2) on n-bit inputs.

证明15页递归除法算法的正确性，然后证明对于n位输入，他需要O(n^2)的时间。

Adjacency search, double linked element list, random direction search, adjacency rotation, and heredity of geometrical quantities are applied to increase the efficiency of mesh generation. The relationship between the computing time and the number of generated elements is nearly linear and the time complexity is O(N^1.05), where N is the number of elements.

采用了邻接单元搜索、双向链表存储、随机方向搜索、邻接旋转、几何量继承等技术，使算法的计算时间与生成单元数近似呈线性关系，时间复杂度达到O(N^1.05)，N为生成单元数。

Talanton {tal'-an-ton} from a presumed derivative of the original form of tlao (to bear, equivalent to 5342);; n n AV - talent 15; 15 1 the scale of a balance, a balance, a pair of scales 2 that which is weighed, a talent 2a a weight varying in different places and times 2b a sum of money weighing a talent and varying in different states and according to the changes in the laws regulating currency 2b1 the Attic talent was equal to 60 Attic minae or 6000 drachmae 2b2 a talent of silver in Israel weighed about 100 pounds (45 kg) 2b3 a talent of gold in Israel weighed about 200 pounds 91 kg

相关经文回前一页 5007 talanton {tal'-an-ton}源自 tlao (负荷，相当於 5342)原型之推测引申字；； n n AV - talent 15； 15 1 天平的秤，秤盘，天平 2 称重，一个他连得 2a 因不同地方及次数而改变的重量 2b 和一个银子等重的总金额，且因依据管理货币之法律中的小币值在不同国而有所不同 2b1 他连得相等於 60 弥拿或是 6000 锥克玛 2b2 在以色列重量度量衡中，一个银的他连得大约是100 磅(45 公斤) 2b3 在以色列量量度量衡中，一个金的他连得大约是 200 磅 91 公斤

Elastic collision and inelastic collision are considered in oxygen molecule, nitrogen molecule by electron impart. The mail simulation results were as follow:(1)The variations of drift velocity and the average energy of electron with the E/N in O2 and N2 are obtained. The number of electrons for excitation, ionization, dissociation and dissociative ionization collision with the E/N and the energy of electron are analyzed emphatically.

考虑了各种弹性和非弹性碰撞过程，在纯氧气、纯氮气中，给出了不同简化场E／N条件下的电子漂移速度和平均电子能量的变化；着重分析了激发、电离、分解及分解电离碰撞的粒子数随E／N、电子能量的变化，同时计算了激发发射光谱的波长。

The capacity of accommodating elastic strain energy for a solid material has an upper limit N〓 and low limit N〓.

变形固体存储弹性应变能的能力有一个上限值N〓和下限值N〓。

Decreasing N diffusion width and distance between N diffusion and emitter of minority carriers current can increase MAAP efficiency.

由模拟结果可知，减小N型扩散区的宽度，减小N型扩散区与少数载流子发射极之间的距离，增加P型扩散区的掺杂浓度以及使第二个衬底接触浮空可以有效地提升多环有源保护结构的效率。

In addition, ioding was found to be an efficient catalyst for the imino Diels-Alder reaction of N-arylimine and enol ethers and the reaction provided tertrahydroqinolines in good yields. One pot synthesis of tetrahydroqinolines from aldehyde, aniline and enol ethers was also achieved using iodine as the catalyst. The chemical yield of the"one pot"reaction was comparable with that obtained using preformed N-arylimine.

此外我们也发现碘能够有效地催化N-芳基亚胺与烯醇醚的Diels-Alder反应，以很高的化学收率得到了四氢喹啉衍生物，并且发现碘也能够直接催化芳香醛、苯胺、烯醇醚的三组分"一锅"反应，获得的化学产率与使用预制的N-芳基亚胺相当。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。