1.
A subset S of a ring A is a subring of A.
环A的子集S叫作A的子环。
2.
The Derivations From the Lie Algebra of Skew Derivations on Quantum Torus to Its Modules
量子环面上的斜导子李代数模的导子
3.
proton-proton chain
【核】质子-质子循环
4.
proton electron positron storage ring
质子 电子 正电子贮存环
5.
circumsporozoite protein
[疟原虫]环子孢子蛋白
6.
cyclic eletron flow
循环电子流，循环电子传递
7.
The rope, rod, or spar on which such a ring moves.
环可供这种环移动的绳子、竿子或圆材
8.
Study on Epoxidation of Cyclohexene Oxidized by Molecular Oxygen;
分子氧氧化环己烯合成环氧环己烷的研究
9.
To encircle or surround with or as if with a girdle.
环绕，围绕用或好象用带子捆扎或环绕
10.
DT Domains and α-, b-, c- Operation in Commutative Rings;
DT整环和环上的α-，b-，c-算子
11.
Generalized (θ, Φ)-Derivations in Prime and Semiprime Rings
素环和半素环中的广义（θ，Φ）-导子
12.
MTO catalyzed epoxidation of cyclohexene in ionic liquids
MTO/离子液体催化环氧化环己烯的研究
13.
Metacyclic Groups with a Cyclic Subgroup of Index 2
具有指数为2的循环子群的亚循环群
14.
The child was rolling a hoop.
那个孩子在滚铁环。
15.
The boys rolled their hoops down the street.
男孩子们在街上滚铁环。
16.
She wound her arms round the child.
她双臂环抱着那个孩子。
17.
ring discharge ion laser
环状放电离子激光器
18.
a house embosomed in [with] trees
被树木环绕着的屋子