The definition of derived set calculation can be obtained according to the closure of set and the characteristics of derived set.
根据导集的性质以及闭包运算的定义，得到导集运算的定义。
Similar to the building of topological Spaces through the calculation of a closure of set, the topological Spaces can also be built through the derived set calculation.
又类似于从闭包运算出发建立拓扑空间，从而得到了从导集运算出发建立的拓扑空间。
The equivalence relation defined by the (transitive closure of the) set of imposed constraints implies N L = N L
实施的约束集合（的传递封包）所定义的等价关系表明：NL = N L
A persistent closure of a managed root entity x is defined as the set of managed entities C(x) ={e}, where e is reachable from x directly or indirectly via a persistent relationship.
管理根实体x的一个持久化闭包被定义为一个管理实体集C(x) ={e}，其中 e 可以直接或间接通过一个持久化关系从 x访问。
However, we can set up a closure at the beginning of the function to keep the string from having to be passed on each call.
不过，我们可以在函数的起始处设置一个闭包(closure)，以使得不再必须为每一个调用都传递那个字符串。
Closure Tools is a set of utilities comprising Compiler, Library and Templates, used internally by Google for GMail, GDocs and Maps, and open sourced in 2009.
ClosureTools是一组工具，其中包括编译器、程序库和模板，它原本是Google为GMail、GDocs和Maps内部使用，后来在2009年开源。
The company set up supervisory teams at stores in the city of Chongqing to improve management and overhaul product labeling during the temporary closure.
在临时停业期间，该公司在重庆市的超市里设立监管队伍，改进管理，彻查产品标签。
The commission would be modeled after one set up to recommend lists of military bases for closure that Congress can approve or reject as a group.
这个委员会可能会按照军事基地关闭委员会的模式组建，后者的任务是列出军事基地的建议关闭清单，以便国会可以一起批准或否决。
EU diplomats said ahead of Monday's emergency meeting in Brussels that a draft EU agreement was set to declare the closure of the Balkan migration route.
星期一在布鲁塞尔召开紧急会议之前，欧盟的外交官们表示，即将宣布一项关于关闭巴尔干地区移民通道的欧盟协议草案。
On the base of large experimental data set, the influence of effective pressure on rock velocities is analyzed with regression method and the theory of crack closure.
根据大量的实验资料，本文分析了砂岩样品的纵横波速度和有效压力的关系，对实验结果进行了回归分析，并用裂隙闭合理论进行了解释。
For a limited relationship between a given set of transitive closure, by entering the relationship between a given matrix, and its transitive closure.
求有限集上给定关系的传递闭包，通过输入给定关系的关系矩阵，求其传递闭包。
Algorithms of simplifying right path, the closure set of left path, and normalization cover are proposed.
提出右部路径单一化、左部路径集闭包和规范覆盖的算法。
Based on the definition of XFD, the inference rules for XML and logical implication is studied, and a set of inference rules, a path closure algorithm and membership algorithm are presented, an.
在这种XFD定义的基础上研究了XML的推理规则和逻辑蕴涵问题，提出了一组推理规则集并证明了推理规则的正确性和完备性，给出了求解路径闭包算法和成员籍算法。
PFO closure devices in patients with catheter use set of people, the interventional treatment.
患者选用PF O封堵器经导管置入，进行介入治疗。
A timer is set up at the finishing area of 5 KM. Participants finishing the race by the closure time can fill the result in the certificate according to the time read by the timer.
迷你马拉松终点处安装有计时器，在关门时间内完成比赛的选手，请根据自己到达终点的时间，自行填写成绩证书。
A timer is set up at the finishing area of 5 KM. Participants finishing the race by the closure time can fill the result in the certificate according to the time read by the timer.
迷你马拉松终点处安装有计时器，在关门时间内完成比赛的选手，请根据自己到达终点的时间，自行填写成绩证书。
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