point of closure

闭合点:在数学中

常用释义

词性释义

闭合点:在数学中,一个拓扑空间X的子集A的闭合点(也称为闭合点或接触点)是指X中的一个点x,使得x的每个邻域(或等价地,x的每个开邻域)至少包含一个A中的点。对于A的每个闭合点x∈X,x都在A的闭包中。
例句
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1·At each end point I have a certain amount of closure.
在每个阶段的结尾,我都有一些已经做完的事情。
2·Objective To assess the blocking effects of a new-type closure device for the puncture point of femoral artery in vitro.
目的观察一种新型股动脉穿刺点封堵装置的体外栓塞效果。
3·Closure at some point in the vocal tract that blocks the flow of air in the production of an oral or a nasal stop.
阻塞在发鼻阻音或阻塞音时,声带的某一点闭合,阻止气流通过。
4·Result depends on the position of the highlighted closure point versus the intersection location.
计算结果取决于高亮封闭点相对于交点的位置。
5·Intersection point closure is one of the difficulties in the processing.
交点闭合是本次处理的难点之一。
6·But the key point of the procedure depends on the issue, "whether or not can the higher education enrollment expansion reduce the social stratum closure."
但是这一命题的关键之处,或者这一命题的基石就在于高校扩招能否降低阶层间的封闭性。