1) Ω ring
Ω环
1.
The stress and displacement of Ω rings with two kinds of steels and various specifications were calculated by the elastic and plastic finite element method of ANSYS, and the corresponding load-displacement curves in the dangerous sections were obtained.
采用非线性有限元法对2种材料不同尺寸的Ω环模型进行了弹塑性计算,得到了各危险截面处的内压-应变曲线。
2.
The stress and displacement ofΩ rings of different materials and sizes were calculated by the elastic and plastic finite element m ethod by m eans of ANSYS program .
应用 ANSYS有限元分析软件 ,对不同材料和尺寸组合的 Ω环模型结构进行了弹塑性有限元计算 ,采用零曲率准则确定了各个模型的极限轴向力和极限内压 ,分析了极限载荷与 Ω环结构参数——环壳截面半径 a、壳体厚度 h以及环半径 R的关系 ,通过曲线拟合 ,得到了 Ω环极限载荷的近似计算公式。
2) Z[ω] domain
Z[ω]整环
3) ω-circulant
ω循环
1.
We propose the ω-circulant boundary condition and make comparison with both the ordinary circulant boundary condition and helix one.
提出了ω循环型边界条件 ,并将其与普通循环型及螺旋型边界条件作了分析、比较后得到了一种新的边界条件即混合型边界条件 。
4) ω~T-Noetherian ring
ω~T-Noether环
1.
In this paper, we introduce gυ-ideal, gυ-torsion-free module,ω~T-module,ω~T-envelope in Commutative rings and defineω~T-Noetherian ring.
本文首先在交换环中引入gυ-理想、gυ-无挠模、ω~T-模,模的ω~T-包络;给出了ω~T-Noether环的定义。
5) the quasi-Ω-domains
拟Ω-整环
1.
In this paper,the definition of the quasi-Ω-domains is given.
文章首先给出了拟Ω-整环的定义,同时对拟Ω-整环提出了两个问题,并给出了肯定的回答,最后还证明了若R是一个PVMD的拟Ω-整环,则对R的每个非零的素w-理想P来说,或者w-D(w-J(P))=w-P↓,或者w-D(w-J(P))=w-P↓\{P}且P是未分支的。
6) Ω seal ring
Ω型密封环
1.
Technical essentials of maintenance and replacement ofΩseal rings in high—pres- sure heat exchangers are explained in detail, causes of polythionic acid stress corrosion are analyzed,and items to be noted in the re—star- tup of high—pressure heat exchangers after ma- intenace are put forward.
较详细阐述了高压换热器Ω型密封环维修、更新的技术要点,分析了其发生连多硫酸应力腐蚀的原因,并提出了高压换热器修复后再开工应注意的问题。
补充资料：4,4'-(1-甲基亚乙基)双酚与2,2'-[(1-甲基亚乙基)双(4,1-亚苯基-氧亚甲基)]双环氧乙烷和α-(环氧乙烷基甲基)-ω-(环氧乙烷基甲氧基)聚[氧(甲基-1,2-乙二基)]的聚合物
CAS：69761-19-9
分子式：(C21H24O4·C15H16O2·(C3H6O)nC6H10O3)x
中文名称：4,4'-(1-甲基亚乙基)双酚与2,2'-[(1-甲基亚乙基)双(4,1-亚苯基-氧亚甲基)]双环氧乙烷和α-(环氧乙烷基甲基)-ω-(环氧乙烷基甲氧基)聚[氧(甲基-1,2-乙二基)]的聚合物
英文名称：Phenol, 4,4'-(1-methylethylidene)bis-, polymer with 2,2'-[(1-methylethylidene)bis(4,1-phenylene oxymethylene)]bis[oxirane] and .alpha.-(oxiranylmethyl)-.omega.-(oxiranylmethoxy) poly[oxy(methyl-1,2-ethanediyl)]；is(4,1-phenyleneoxymethylene)bis[oxirane] and alpha-(oxiranylmethyl)- omega -(o；xiranylmethoxy)poly[oxy(methyl-1,2-ethanediyl)]；phenol, 4,4'-(1-methylethylidene)bis-, polymer with2,2'-[(1-methylethylidene)bis(4,1-phenyleneoxymethylene)bis[oxirane]and alpha-(oxiranylmethyl)- omega-(oxiranylmethoxy)poly[oxy(methyl-1,2-ethanediyl)]
分子式：(C21H24O4·C15H16O2·(C3H6O)nC6H10O3)x
中文名称：4,4'-(1-甲基亚乙基)双酚与2,2'-[(1-甲基亚乙基)双(4,1-亚苯基-氧亚甲基)]双环氧乙烷和α-(环氧乙烷基甲基)-ω-(环氧乙烷基甲氧基)聚[氧(甲基-1,2-乙二基)]的聚合物
英文名称：Phenol, 4,4'-(1-methylethylidene)bis-, polymer with 2,2'-[(1-methylethylidene)bis(4,1-phenylene oxymethylene)]bis[oxirane] and .alpha.-(oxiranylmethyl)-.omega.-(oxiranylmethoxy) poly[oxy(methyl-1,2-ethanediyl)]；is(4,1-phenyleneoxymethylene)bis[oxirane] and alpha-(oxiranylmethyl)- omega -(o；xiranylmethoxy)poly[oxy(methyl-1,2-ethanediyl)]；phenol, 4,4'-(1-methylethylidene)bis-, polymer with2,2'-[(1-methylethylidene)bis(4,1-phenyleneoxymethylene)bis[oxirane]and alpha-(oxiranylmethyl)- omega-(oxiranylmethoxy)poly[oxy(methyl-1,2-ethanediyl)]
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