vgf

Vertical gradient freeze ( VGF) technology is a proven technique for growing semiconductors composed of multiple elements that include: gallium, arsenic, indium, and phosphorus.

垂直倾斜结冰技术是被验证为成长半导体多样元素的混合，包括，锗，砷，铟和磷。

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First of all, this paper investigates research status of fuzzy relational database and properties of vague set, and then puts forward a generalized fuzzy relational data model on vague set ( VGFRDM) and a fuzzy database structured query language on vague set ( VFSQL).

本文首先探讨了模糊关系数据库的研究现状和Vague集的性质，然后提出了基于Vague集的广义模糊关系数据模型VGFRDM和基于Vague集的模糊数据库查询语言VFSQL。

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As study of the angiogenesis and VGF development, theraputic angiogenesis has become a new approach to treat IHD.

近年来，随着对血管新生和血管生长因子研究的不断深入，治疗性血管新生已成为治疗缺血性心脏病的新方法。

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Objective: Carry out the secretive expression of VGF.

目的：实现痘苗病毒生长因子的高效分泌型表达。

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VB, VGF and VCZ are the feasible techniques to grow such GaAs crystals.

VB、VGF和VCZ是满足这些要求的最佳GaAs单晶生长方法。

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Total liquid encapsulated vertical gradient freeze ( VGF) method has been used to grow undoped semi-insulating ( SI) GaAs crystals. The impurities such as silicon and carbon have been well controlled in the growth process.

研究了非掺GaAs半绝缘单晶的液封垂直梯度凝固法（VGF）生长技术，解决了Si沾污和C浓度的控制问题，得到了直径2英寸非掺半绝缘低位错单晶。

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Numerical Simulation and Experimental Study on 4 ″ VGF GaAs Crystal Growth

4英寸VGFGaAs单晶生长的数值模拟与实验研究

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Vaccinia growth factor ( VGF), a new member of EGF superfamily, is capable of binding or stimulating EGF receptor autophosphorylation to a level greater than that of human EGF.

痘苗病毒编码的生长因子（VGF）是EGF超家族的新成员，与EGF受体结合并刺激其自身磷酸化的能力强于EGF。

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