查询词典 iff

The problem of finding stabilizer quantum-error-correcting codes can be transformed into the problem of finding classical self-orthogonal linear codes over the Galois field GF(4) under a Hermitian inner product. A classical cyclic code over the field GF(4) is self-orthogonal with respect to the Hermitian inner product iff the generator polynomial of its dual code is a factor of its generator polynomial.

寻找量子稳定子码的问题可以转化为寻找GF(4)上厄米内积自正交的经典线性码的问题；对于GF(4)上的经典循环码，它是厄米内积自正交的，当且仅当它的对偶码的生成多项式是其生成多项式的因子。

When the consistency is checked, the "distance diagram"is employed. It is concluded that the axioms of a description satisfies the consistency iff there are no negative directed cycles in the distance diagram.

在验证ISITL描述的一致性时采用"距离矢量图"，并认为一个ISITL描述满足一致性当且仅当其距离矢量图上不存在负矢量和的有向回路。

Tu is a digraph denoted as DHG with nodes corresponding to the data segments of P and a set of directed arcs joining these nodes such that ,for i≠j,Di→Dj Iff there exist tTu s.t.

Dn.A数据库的P wrtTu层次图划分为华赋性与节点对应的数据段P和直接参与了这些节点的弧集，这样，因为我≠，邸→当且仅当存在tεTus.t。

In this thesis, we consider positive solutions of a degenerate parabolic system with homogeneous Dirichlet boundary condition. It is proved that all positive solutions exist globally iff 12≥abλ, whereλ1 is the first eigenvalue of ??

该论文研究一类具有齐次Dirichlet边界条件的退化抛物方程组正解的性质，证明了所有正解整体存在的充要条件是12≥abλ，其中λ1是具有齐次Dirichlet边界条件的？？

In 1986,in the paper [1] Junnila proved the result :A space is hereditarily metacompact iff its every scattered partion has a point finite open expansion .

Junnila在文[1]中证明了：一个空间是遗传亚紧的当且仅当它的每个散射分解有一个点有限的开膨胀。

The Russian designers have a well-deserved reputation for being less technologically sophisticated than their western counterparts, but you can see that the Flogger has a heads-up display, and it also has fairly fancy missile and IFF (identification - friend or foe) systems.

俄罗斯设计师们并不比他们的西方竞争对手有更尖端的技术，却享有当之无愧的声誉，在他们的飞机上你仍然能看到平显，同样拥有空空导弹和敌我识别系统。

Berta Maranz; Head of Piano Department at the Music School for Children and Young People, Gorki; Co-repetitor in Conducting and Lecturer at the University of Gorki; Years of Cooperation with the Centre for Children and Young People; 2002 PhD ;1995 - move to Germany, Lecturer at the University of Music and Drama, Hannover (IFF - Institute for the Advancement of Young Musicians) with national and international Price winners: Elisabeth Brauss, Alexander Haupt, Sun Meng, Igor Levit.

高尔基（现名Nizni Novgorod）青年与儿童音乐学校钢琴系主任；高尔基大学担任副指挥和讲师；与青年及儿童中心合作多年；2002年获得博士学位

S IFF always inoperative in OFF mode.

答 IFF在关闭时是没有作用的。

S:IFF always inoperative in OFF mode.

IFF在关闭时是不会起作用的。

Compared with traditional analog IF method and digital base-band method, this new method has some advantages such as simplicity, temperature insensitiveness and high reliability and can be used in spread-spectrum communication, pulse compression radar and IFF systems.

与传统采用的SAW中频模拟处理方法和数字基带处理方法相比，该方法具有结构简单、工作温度范围宽和可靠性高等优点，可用于扩频通信、脉冲压缩雷达和敌我识别等系统。

Article 144 The Government of the Hong Kong Special Administrative Region shall maintain the policy previously practised in Hong Kong in respect of subventions for non-governmental organizations in fields such as education, medicine and health, culture, art, recreation, sports, social welfare and social

第一百四十四条香港特别行政区政府保持原在香港实行的对教育、医疗卫生、文化、艺术、康乐、体育、社会福利、社会工作等方面的民间团体机构的资助政策。原在香港各资助机构任职的人员均可根据原有制度继续受聘。

Small wonder, then, that the Chinese spend more in the shop than any other group of foreign visitors do .

这样的小惊喜，使中国顾客比任何国家的人消费得更多。