Twenty-thousand riot police will be backed by other officers and security personnel in and around a triple-tiered two-kilometer security ring.
韩国将为方圆两公里的安全区设立三层防线，部署两万名警察和大批保安人员。
Coming complete with their matching Turbine rings, these cranks are available in both triple, double and two ring and guard combination options.
即将与他们匹配的涡轮戒指完成后，这些曲柄同时具备三重，双和两个戒指和后卫的组合方案。
The molecule contains four carbon atoms arranged in a ring with a triple bond between two of them.
这个分子包含四个呈环状排列的碳原子，每两个碳原子之间形成一个三价键。
The purpose of this paper is to study persistent currents in the triple-arm ring with an impurity by using quantum waveguide theory.
采用量子波导理论，研究了含杂质的介观三臂环中的持续电流。
The purpose of this paper is to study persistent currents in the triple-arm ring with an impurity by using quantum waveguide theory.
采用量子波导理论，研究了含杂质的介观三臂环中的持续电流。
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