After rapid thermal annealing(RTA) in Ar atmosphera at high temperature, the flow pattern defects(FPDs) density decreased more sharply in Sb-doped wafers than that in lightly B-doped wafers.

研究了掺杂剂原子种类及快速热处理技术对大直径直拉硅单晶中空洞型微缺陷密度的影响。

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This paper introduces the time series AR (p) self-regression model. and how to apply it to predict the output of B. F. gas in Iron and Steel Works.

本文介绍了时间序列ar (P)自回归模型以及如何利用它来预测高炉煤气的产量。

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Method:Peripheral blood AR levels were measured with rodioligand assay in 13-cis retinoid acid group (group A) and in control group (group B).

方法：采用放射配体方法测定实验组（A组）与对照组（B组）外周血雄激素受体（AR）水平及痤疮患者服药后AR水平。

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Method:Peripheral blood AR levels were measured with rodioligand assay in 13-cis retinoid acid group (group A) and in control group (group B).

方法：采用放射配体方法测定实验组（A组）与对照组（B组）外周血雄激素受体（AR）水平及痤疮患者服药后AR水平。

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