查询词典 Chain Letter

According to real-time requirement of stream data and losable characteristic of transportation, the thesis analysis existing stream data signature methods suc h as star-s haped tree-shaped and Golle chain. Considering the condition of limit ed resource of receiver, it proposes forward plac ed hash chain data signature sc h eme based on Gilbert-Elliot Network channel model and enhanc ed Golle chain stream data signature method.

本文针对流式数据实时性要求和传输中易丢包的特点，分析比较了现存的星型、树型、Golle链型等几种典型的流式数据签名方法，考虑到接收方资源有限的情况，基于Gilbert-Elliot网络通道模型，改进了Golle链型流式数据签名方法，提出了一种hash值前置流式数据签名方案。

The high-speed and multicycle impact characteristics of an automotive chain differ from other high-speed roller chain. The double effect of multicycle impact characteristics and speed, load fluctuant characteristics set up a stern claim of wear to automotive chain.

汽车链条的高速多冲特性不同于其它高速滚子链，高速下的多冲特性以及速度与载荷交变特性的双重效应，对其耐磨性能提出了苛刻的要求，而速度与载荷交变特性的影响尤为重要。

At present, academc mostly study supply chain management's appliance in China. Academic research on the theory of supply chain management is our weakness. Especially, the research on the netlike supply chain's efficiency's base is worse.

目前，我国学术界对供应链的研究多侧重于实证方面，对供应链管理理论的研究则略显薄弱，尤其是对网状供应链运行效率基础(节点企业的竞争与合作问题)的研究更加不足。

The properties of single chain and pauci chain polystyrene microspheres and recent results on the electron microscopy and selected area electron diffraction of single chain monocrystals of polyethylene oxide, isotactic polystyrene, cis1,4 polybutadiene and gutta percha are presented and discussed.

介绍和讨论了单链和寡链聚苯乙烯玻璃体微球的性质以及聚环氧乙烷、同立构聚苯乙烯、－，4－丁二稀、－，4－异戊二烯单链单晶电子显微镜和选区电子衍射观察的最新结果。

By two steps, the material is obtained by the method that polyhydric alcohol, diisocyanate and a diatomic alcohol chain extender with 8-18 C-structural branch chains are mixed and poured into a polyurethane elastomer that achieves a damping effect through the combination and dissociation of a hydrogen bond between the branch chain and the main chain for consuming energy.

该类材料是通过两步法将多元醇、二异氰酸酯和带有8～18个C结构支链的二元醇扩链剂混合浇注成聚氨酯弹性体，通过支链与主链之间氢键的结合与解离消耗能量，起到阻尼效果。

Basing the Poter's value chain theory, thesis analyzed the property management enterprises value chain and it's characteristic, the property management enterprises profits point and the method of extending the value chain profit.

从波特的价值链理论出发，分析了物业管理企业的价值链及其特点，围绕客户分析物业管理企业的利润点以及延展价值链增加利润的方法。

Two sorts of polyacrylate derivates were designed and systhesized. One has benzoic acid groups linked to backbone via an alkyl chain of different length, the other has pyridyl groups at its side chain. On the basis of hydrogen-bonding between carboxyl and pyridyl groups, multilayer film was fabricated in mixed solvents. We studied the effect of either the composition of mixed solvents or length of alkyl chain on the structure of a multilayer film.

设计合成了两类聚丙烯酸酯类高分子，一种侧链含有通过不同个数的亚甲基和主链相连的苯甲酸基团，另一种侧链含有吡啶基团，基于羧基和吡啶基之间的氢键相互作用，在混合溶剂中制备了多层膜，并研究了溶剂组成与高分子侧链间隔基长度对多层膜结构的影响。

Continuous determination of a polymer chain end group(initiating and chain growth species) at various times by electrospray ionization mass spectrometry indicates that the sterically hindered strong organic base predominately plays an initiator of polymer-chain growth in the copolymerization process.

利用飞行时间质谱对聚合物链端进行了跟踪检测，直接观察到了聚合反应的引发及链增长过程，证明大位阻有机碱在共聚反应过程中对聚合物的链增长起着重要的引发作用。

At first, on the view of value chain, the dissertation brings out a set of process integration methodology based on value chain combining BPR thoughts, set up the virtual enterprise value chain framework and mathematics model.

本文首先从价值链的观点出发，结合BPR思想，提出了一种基于价值链的过程集成方法，建立了虚拟企业价值链框架和数学模型。

Coffee", as a nuclear brand in **, has already spread to 23 provinces, autonomies and municipalities in China with more than 3,00 chain shops since 1997 when the brand started to be launched. It was rated by Ministry of Commerce and China Cuisine Association as the top one leisure dining company among the selected top 100 food and beverage companies in China. For consecutive two years, the brand has won the top prize for China's chain shops----"China's Excellent Franchise Brand" awarded by China Chain Store and Franchise Association.

作为公司核心业务品牌的&**咖啡&，自1997年创立品牌开始，已在全国拥有超过300家**咖啡品牌的连锁餐厅，覆盖23个省、自治区和直辖市，是中国商务部和中国烹饪协会公布的餐饮百强中为列第一的休闲餐饮企业，并在2006年和2007年连续两年获中国连锁业最高奖项： CCFA&中国优秀特许品牌&奖项。

Aquatic or marsh-growing fern allies; known to have existed since the Cenozoic; sometimes included in Lycopodiales.

生活于水中或湿地的蕨类；从新生代生存至今；有时归于石松目之中。

The engine was uprated from a 90hp Franklin to a 125hp Lycoming.

改良过的引擎是从90hp到125hp莱康明富兰克林。