This research includes three parts: the part of product difference model, the part of designing and the example part.

本文内容分为三部分，即产品差异化模型研究部分、产品差异化构建部分、实例部分。

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A finite difference model for predicting temperature fields in early age concrete is presented based on adiabatic test on concrete.

采用有限差分方法，建立了基于混凝土绝热温升试验的早龄期混凝土温度场计算模型。

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The correctness of the similar single-difference model and the validity of the method of identifying outliers are verified with the test data.

利用试验数据对似单差模型的正确性及粗差识别方法的有效性进行了检验。

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Now the difference between the two models, the health model and the disease model is more than just semantic.

两种模型，健康模型和疾病模型的差异,不仅仅是语义上的。

哈佛公开课 - 幸福课课程节选

The difference is Google believes the partner model is now fundamentally different.

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As they note, there is really only one critical difference between the current, expensive model that excludes the majority of people who need this service and the for-profit model: a legal framework.

FORBES: Making Babies: Selling Embryos, Despite Ethical Concerns, Addresses Genuine Needs

The main difference being that the more traditional model, featuring pro-rata allocation and collection of payment for order flow, is more geared towards one facet of the investing community, comprised in large part by retail investors who are using options limit orders and other very simple strategies.

FORBES: Examining The Options Flash