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1)  restricted type
限制型;约束型
2)  constraint limit
约束限制
3)  constraint [英][kən'streɪnt]  [美][kən'strent]
约束,限制
4)  limit constraint
限制约束
1.
The paper analyses the problems which exist in the privilege control and data protection of the current privilege control framework and makes an extension on the privilege control frame,which is limit constraint support based on RBAC.
本文针对当前权限控制框架在权限控制和数据保护方面存在的问题,提出一种新的权限控制解决方案——基于RBAC的限制约束扩展。
5)  constraint model
约束模型
1.
The description is based on constraints and called constraint model, which is defined by the features that satisfy a definite constraint set.
模型描述是基于约束的,故称为约束模型,并定义为满足一定约束关系集的特征集合。
2.
Aiming at the sequencing workingsteps on machining center,by taking the assistant machining time as the optimization object,a constraint model is established based on polychromatic sets theory,where the contour matrix is used to formalize the conditioned restrictions visually and comprehensively.
针对加工中心上的工步排序问题,以辅助加工时间最短为优化目标,基于多色集合理论建立了问题的约束模型。
3.
As an indispensable part in any CAD systems, technology concerning constraint modeling is highly emphasized, and many useful solutions have been raised which encourage the reform and application of CAD systems.
为了能够正确地维护设计者的设计意图和满足用户的需求,本文在原系统的基础之上,提出了一种语义特征约束模型。
6)  restrained type
约束类型
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性质:一种保护细菌细胞不受外源DNA侵入的作用,通过限制性内切酶实现。该酶对双链DNA进行定点剪切。通常合成限制性内切酶的细胞由于还能合成识别同样位点的修饰酶而使细胞本身的DNA结构进行修饰,如甲基化而受到保护。当细菌受到噬菌体感染,而噬菌体DNA事先未经修饰,则这未经修饰的外来噬菌体DNA被切成小片段,再进一步为外切核酸酶所降解。未经修饰的噬菌体DNA引起感染的可能性比修饰过的噬菌体DNA要小几个数量级。   

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