基本解释：闭球
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In this paper,with the aid of the w~*- sequential compactness of bounded closed balls in the conjugate space of a separable space,we proved that the convex hull of a finite union of bounded closed balls in l~∞ is closed.借助可分空间的共轭空间中有界闭球的弱星序列紧性,证明在无穷维数列空间l∞中有限个闭球之并的凸包仍为闭集。
Method for manufactering spherical and pore closed expanded perlite Ⅱ.study on expansion method of spherical pore closed expanded perlite;球形闭孔膨胀珍珠岩的制造方法(Ⅱ)——球形闭孔膨胀珍珠岩的膨胀工艺研究
The authors give the theorem of nested closed-balland Baire s theorem on the kinds of spaces.引进亚度量族生成空间的概念，给出了这类空间中的闭球套定理和Ｂａｉｒｅ定理。
THE MECHANICAL BEHAVIORS OF CLOSED-CELL ALUMINUM-ALLOY FOAMS WITH SPHERICAL PORES球形闭孔泡沫金属材料力学行为研究
Design of Production Line of Spherical and Closed-porous Expanded Pearlite with 7200t of Annual Capacity;年产7200t球形闭孔膨胀珍珠岩生产线设计
A closed, spherical ascocarp.闭囊壳一种关闭的球形子囊孢果
tongue-and-groove pass闭口[直轧闭]孔型
Indentation Property of Closed-cell Aluminum Foam under the Flat-end Cylindrical Indenter闭孔泡沫铝在圆柱形平压头下的压痕性能
Experimental study on cellular structure statistical analysis and uniaxial deformation behavior of closed-cell aluminum foam闭孔泡沫铝特征统计及其变形行为实验研究
The helium-3 apparently became trapped when the earth was formed.显然，当地球形成时，氦－3就被圈闭了。
New type of porous metal with spherical pore prepared by plastic working and properties新型塑性加工制备球形孔多孔金属及其性能
Preparation and Characterization of Mesoporous Silicon Dioxide Spherical Particles;介孔二氧化硅球形颗粒的制备与表征
At the earlier stage of eutectic, the enveloped or nor- enveloped frame austenite shell lias formed.共晶前期石墨球局围形成封闭或不封闭的框架奥氏体壳;
Study on Spherical Pore Al Alloy Foam with Fractal Theory and Fem Method;球形孔泡沫铝孔结构的分形特性和有关性能的有限元法研究
Deformation of sandwich beams with spherical pore Al alloy foam core in three-point bending球形孔泡沫铝合金三明治梁的三点弯曲变形
How to Select the Main Parameters of the Grooved Ball- Chamber of Closed Valve Bonnet on Sucker Rod Pumps.抽油泵闭式阀罩槽形球室主要结构参数的选择
The Effectiveness of Percutaneous Transluminal Angioplasty for the Treatment of Lower-extremity Arteriosclerosis Obliterans with Low-profile Balloon;长球囊扩张成形术治疗下肢动脉硬化闭塞症
Pelvini Obturoria Neurotomy to treat spastic cerebral palsy with hip adduction deformity盆腔内闭孔神经切断治疗脑瘫髋内收痉挛畸形近期疗效观察
Early and Midterm Results of Double-orifice Technique for Mitral Regurgitation;双孔成形术治疗二尖瓣关闭不全的早中期疗效评价
Study on Deformation and Densification Laws of Powder Closed-forging粉末多孔体烧结材料闭式模锻塑性成形致密研究
The configuration of the pore space is different from that which would be obtained from the packing of uniform spheres.自然界物质孔隙结构与均匀球粒的堆积而形成的孔隙是不同的。
