总之，种种约束限制了关系数据库系统的灵活性，并因此限制了系统用户在数据库内部实现复杂、交互式模型的能力。
Overall, these restrictions limit the flexibility of relational database systems and, thus, the ability of users of such systems to implement complex, interactive models within the database itself.
即使关系数据库缺少解决方案所需的灵活性，与替代技术相比，它们仍然更成熟，更适合满足复杂的业务需求。
Even when relational databases lacked the flexibility required for a solution, they were still more mature and better suited for heavy demands than the alternatives.
为克服这种约束并最大化实现关系数据库系统的灵活性，DB2V9.5引入了全局变量的概念。
To overcome this restriction and to maximize the flexibility of a relational database system, DB2 V9.5 introduces the concept of global variables.
流化床电化学反应器是一种新型的电化学反应器，具有活性面积大、质系数高等优点。
The fluidized-bed electrochemical reactor is a new type of electrocbemical reactor cbaracterized by large active surface and high mass transter coefficient.
观察神经缺损症状的变化及检测脑系数、脑含水量、丙二醛(MDA)含量、超氧化物歧化酶(SOD)活性、一氧化氮(NO)含量。
The changes of neurological defect were observed. The content of brain water, MDA, NO and the activity of SOD were measured.
目的研究获得具有红光区高吸收系数的新型光敏剂的结构及其光生物活性。
Objective To explore the possibitlity to obtain new photosensitizers with high absorption coefficient in red band of the spectra.
活性石灰窑结构先进，采用可靠的回转窑两端组合式鳞片密封，使漏风系数小于10%；
Active lime pit is advanced in structure as it adopts reliable both-ends combined type scale sealing, making the air leakage factor below 10%.
药物的小肠表面透皮系数是表征药物活性的重要指标。
The apparent permeability coefficient (Papp) of drugs through small intestine, is one of important factors to evaluate drugs' biological activity.
各组小鼠肝、脾脏器系数以及血清丙二醛含量、超氧化物歧化酶活性的比较；
Organ coefficients of liver and spleen; MDA content and SOD activity in serum;
SOD组在缓解肺系数、降低SOD活性及抑制凋亡方面优于U74389G组（P <0.01，P <0.05）；
SOD group was significantly better than U74389G group in coefficient of lung, SOD activity and apoptosis index, (P <0.01, P <0.05).
经该表面活性剂整理后的纯棉织物的悬垂系数为54.25%，而未整理织物的悬垂系数为62.25%。
The drapability coefficiency of cotton fabric finished by this surfactant was 54.25%, while that of the unfinished fabric was 62.25%.
在无反应发生条件下进行固定化细胞内组分有效扩散系数测定时，常常要使细胞失去活性。
There exist different methods of inactivating cells which give a non-reaction-occurring condition under which the effective diffusivity of a substrate in the immobilized cell matrix is often measured.
电子锁由于其保密性高，使用灵活性好，安全系数高，受到了广大用户的青睐。
Electronic lock because of its confidentiality high, use flexibility good, high safety coefficient, got the favor from the masses of users.
用溶解度不同的活性物释放数据对方程进行拟合并求得各组分在多孔聚合物基质中的有效扩散系数和溶解速率常数。
The model was used to fit the release profiles of three actives with different solubility, and the diffusion coefficient and dissolution rate constant were obtained.
结果表明，曝气池中投加沸石粉可明显提高活性污泥的产率系数和衰减系数。
It was found that the values of yield coefficient and decay coefficient, which were significantly affected by the zeolite addition, were enhanced 20% and 16.
建立了一种新的测量表面活性剂在油中弥散系数的实验方法，该方法简单适用。
A new measurement method of surfactants in oil diffusion coefficient is established and is simple and practical.
神经系统的抑制性和活动灵活性与步枪射击技术中的据枪稳定性、击发稳定性相关非常显著，相关系数在0.6～0.8之间；
Inhibition and flexibility of nerve system has great relevance with grasping and aiming stability respectively. The relevant coefficient ranged from0.6 to 0.8;
当表面活性剂浓度高于其临界胶束浓度(CMC)时，正己烷表观亨利系数显著降低。
The apparent Henry's constants were significantly reduced when the surfactants concentrations exceeded their critical micelle concentrations (CMC's).
本文还推导出一定条件下正己烷表观亨利系数与表面活性剂浓度的关系式。
In addition, the relationship between apparent Henry's constant and surfactant concentration is been further developed.
与传统活性炭过滤网相比，具有更优良的气体动力学性能，体积密度小，比表面积大、吸附效率高，风阻系数小。
Compared with traditional filter, it has better function of gas dynamics , and it has small density but has bigger surface, it has good absorbing function with small windy resistance.
容重、过氧化氢酶活性变异系数最小，为不敏感。
As the least variation ratio is the bulk density and catalase, call it non-sensitivity.
由于具有恒李雅普诺夫指数的类Colpitts混沌系统存在特殊的常数项参数与系数参数，因此，整个同步体系的状态变量具有幅度与相位的调节灵活性。
There exists adjustable flexibility on amplitude and phase of state variables owing to the special parameters, i. e. constant term and coefficient of CCSCLE.
由于具有恒李雅普诺夫指数的类Colpitts混沌系统存在特殊的常数项参数与系数参数，因此，整个同步体系的状态变量具有幅度与相位的调节灵活性。
There exists adjustable flexibility on amplitude and phase of state variables owing to the special parameters, i. e. constant term and coefficient of CCSCLE.
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