1) Quasidiagonal extension
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拟对角扩张
1.
Otherwise , based on [8] ,we discuss the quasidiagonal extension property of C~*-algebras of tracially tracial rank tracially real rank zero .
另外,基于[8],我们讨论了C~*-代数的迹迹秩和迹实秩(TRR)为零的C~*-代数的拟对角扩张性质。
2) Quasi-excellent extension
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拟Excellent扩张
3) quasi-excellentextension
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拟优扩张
1.
It is proveda rightS-moduleM S is a generalizedprojectivemoduleif and only if M S is wheneverring extensionS≥R is a quasi-excellentextensionand a finitetriangularextension.
引进了广义投射模的概念,给出了广义投射模的若干刻划,证明了广义投射模与FP-内射模在Morita对偶下互为对偶,同时证明了当环扩张S≥R是有限三角扩张及拟优扩张时,模MS为广义投射模当且仅当MR为广义投射模。
4) Keratectasia
[,kerətek'teiziə]
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角膜扩张
1.
The Research of Post-LASIK Keratectasia in Rabbits' Eyes after LASIK Surgery;
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兔眼准分子激光原位角膜磨镶术后角膜扩张的研究
2.
This article reviews the current study on keratectasia after LASIK.
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LASIK术后角膜扩张是少见而严重的并发症之一,严重影响手术效果,近年来引起广泛关注。
5) expansion angle
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扩张角
1.
The effect of expansion angle of inlet on the heat transfer and flow resistance was tested and the quadrate shell was compared with circular shell.
对气流横向冲刷圆壳管束的传热和阻力性能进行了实验研究,对不同进气扩张角对传热与阻力的影响进行了测试,并与气流横向冲刷方形区域均匀布管管束比较,结果发现,均匀进气方形区域布管的传热性能好于扩张角进气圆形区域布管,但阻力增大,综合性能前者好于后者。
2.
The effects of half expansion angle, expansion ratio and boundary conditions on performance of 2D micronozzle with half throat heitht 34 were numerically studied.
本文数值模拟喉部半高为34μm的二维微喷管,分别分析了固定进口及固定喉部尺度下扩张角、扩张比以及滑移边界条件对微喷管性能的影响,发现最佳半扩张角在20°-22°之间,而最佳扩张比为7。
6) expansion cone half angle
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扩张半角
1.
Analysis on effects of expansion cone half angle on performance of nozzleless booster
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扩张半角对无喷管助推器性能的影响分析(英文)
补充资料:极大扩张和极小扩张
极大扩张和极小扩张
maximal and minimal extensions
极大扩张和极小扩张匡.习的司出目.公油抽lex妇心.旧;MaKcl.Ma刀‘.oe H Mll.”M田.妇oe PaC山一Pe皿朋] 一个对称算子(s笋nr贺苗c opemtor)A的极大扩张和极小扩张分别是算子牙(A的闭包,(见闭算子(cfo“月。详mtor”)和A’(A的伴随,见伴随算子(呐。int opera.tor)).A的所有闭对称扩张都出现在它们之间.极大扩张和极小扩张相等等价于A的自伴性(见自伴算子(义休.adjoint operator)),并且是自伴扩张唯一性的必要和充分条件.A.H.J’Ior朋oB,B.c.lll户、MaR撰
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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