查询词典 ab-ampere

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。

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For applications requiring a wide bagging capability, the AB 180 OneStep integrates the successful Autobag AB 180 Wide Bagger and PI 412c Imprinter platforms to provide an inline, 1:1 'Print-n-Pack' system.

对于需要广泛装袋能力，是AB 180 OneStep整合成功Autobag抗体180宽巴格尔和PI 412c印刷机平台，提供一个嵌入式，1：1'打印丁基包'系统。

In fact, the total energies for the possible metastable alloy phases of A〓B and AB〓 types of six possible structures were calculated as a function of their lattice constant to find out if the respective metastable phases of A〓B or AB〓 types could be relatively stable in the selected systems. The calculation not only predicted the possible metastable states but also the lattice constant of the corresponding metastable alloy phases of either FCC or HCP structures.

对可能存在的A〓B或AB〓型亚稳合金相的六种结构，将总能量作为点阵常数的函数进行了计算，用以找到选定系统中相对稳定的A〓B或AB〓型亚稳合金相。

In them,as for the mean value calculated by least square method,AA maximum,AB next and BB minimum.In addition,GH3 obviously affected the body length,AA maximum, AB next and BB minimum.

运用最小二乘法对三个牦牛群体进行分析发现GH基因第3外显子对体重有显著影响(P＜0.05)，其中，最小二乘法得出的均值，AA型最大，AB型次之，最小的为BB型。

The result showed FSH receptor mRNA levels from the right ovary of BB (1.14 ± 0.11) ewes were higher than those of AA (0.44 ± 0.11) and AB (0.36 ± 0.08) ewes (P.01); LH receptor mRNA levels from the right ovary of BB (0.42±0.02) ewes were significant higher than those of AA (0.23 ± 0.02) and AB (0.25±0.04) ewes (P.01), but there were no significant difference in the left ovary among the genotypes during the oestrum.

结果显示：在发情期BB型右侧卵巢PR的mRNA水平(0.81±0.10)显著高于AA(0.43±0.10)型(P.05)，左侧卵巢各基因型间无差异。

Results The purification effect was satisfactory when the concentration of original solution of the extract of Cacumen Platycladi was 0.20 gmL^(-1), the loading amount was 0.375 g of Cacumen Platycladi per 1 mL of wet AB-8 resin, the adsorption velocity was 1 mLmin^(-1), the eluant was 70% alcohol being 4 times as much as the resin volume, and the elution velocity was 2 mLmin^(-1). AB-8 resin could be used for 3 times repeatedly after being reproduced by 95% of ethanol and 1 moLL^(-1) of natrium hydroxydatum. The remaining rate of the total flavonoids and quercitrin was over 70% and 95% respectively, and the remaining rate of peaks 1~3 was over 90%.

结果 AB-8型大孔吸附树脂纯化效果较好，最佳工艺条件为：上样液浓度为含生药量0.20gmL^(-1)，上样量为每1mL湿树脂上样0.375g生药，吸附速率为1mLmin^(-1)，洗脱液为4倍柱体积的70%乙醇，洗脱速率为2mLmin^(-1)；树脂经95%乙醇和1moLL^(-1)氢氧化钠溶液再生后，可重复使用3次。

We also found that the retention of PNIP- Ab〓 on the cellulose membraneincreased over 30-fold when compared with the unconjugated Ab〓.

我们将嗜热菌蛋白酶固定在这种聚合物上，首次利用它的热可逆特性实现了均相酶催化反应，异相分离。

Thy-1.1~+ OT-I CD8 T cells were adoptively transferred into Thy-1.2~+ host C57 mice treated with either isotype or PK136 Ab as mentioned above followed by injection i.v.withΔactA LM-OVA.On day 7 after infection,equal number of Thy-1.1~+ CD8 T effector cells from either hosts were sorted and adoptively transferred into second host mice(Thy-1.2) which were also on day 7 after infection and treated with isotype or PK136 Ab,respectively.

为进一步阐明NK细胞促进CD8Tm细胞的产生是作用于收缩期而不是扩增期，我们设计了如下的实验：将Thy-1.1~+ OT-I CD8 T细胞过继回输到经PK136抗体或对照抗体处理的C57小鼠体内并用ΔactA LM-OVA感染，7天后将两组小鼠脾脏中的Thy-1.1~+ CD8T细胞分离纯化后等量分别回输到同步感染的经PK136抗体或对照抗体处理的第二受体小鼠体内。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。