那就是说，卡特拉正是在一个半正规的基础上喷发的，典型的周期是每次爆发之间相隔30到80年。
That said, Katla does seem to erupt on a semi-regular basis, with typical periods between eruptions of between 30 and 80 years.
左半正规纯正半群是幂等元集形成左半正规带的纯正半群。
A left seminormal orthodox semigroup is an orthodox semigroup whose idempotents form a left seminormal band.
一张打着正规商标的床垫，出厂价只有正规商家的一半，这样的床垫你敢买吗？
A dozen wears the mattress of regular brand, the manufacturer's price only has the moiety of regular store, mattress like this do you dare to buy?
由此推出了P -正则半群上的每个P -同余完全是由其包含幂等元的部分核正规系所决定的。
So We have prove that each P-congruence on P-regular semigroups is uniquely determined by its partial kernel normal systems containing idempotent elements.
拟正则半群上的两个完全正则同余相等当且仅当它们的核正规系相同。
Completely regular congruence on an eventually regular semigroup is uniquely determined by its kernel normal system.
首先在正规子群与同余的关系的基础上，采用类比的方法，从同余的角度给出了群的正规列幂半群的另一种刻画。
In this paper, based on the relation between normal subgroup and congruence, another depiction of normal series power semigroup is given from the angles of congruence by the method of analogy.
本文引入了半群的正规左(右)模糊理想的概念，研究了这类模糊理想的性质。
In this paper we introduce the notion of a normal fuzzy left (resp. right) ideal in a semigroup, and investigate some of its properties.
证明左拟正规带范畴中张量积的存在性，并证明了它与半群张量积的关系，同时给出半格在左拟正规带范畴中张量积与在半格范畴中张量积之间的关系。
The existence of a tensor product is proved in the left quasi-normal band category, and the relationship with the tensor product in the semi-group category is provided.
拟正则半群上的两个完全正则同余相等当且仅当它们的核正规系相同。
A Completely regular congruence on an eventually regular semigroup is uniquely determined by its kernel normal system.
但由于政策上的限制，民营出版一直不敢浮出水面，处在一种半地下的经营状态，管理上也没有纳入正规渠道。
But because of policy constraints, the PBPI is not daring to be operated openly, and the management was not including in formal channels also.
但由于政策上的限制，民营出版一直不敢浮出水面，处在一种半地下的经营状态，管理上也没有纳入正规渠道。
But because of policy constraints, the PBPI is not daring to be operated openly, and the management was not including in formal channels also.
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