以下为句子列表：
英文: 1 Barite is one of the weighting materials. The density is about 4.2 S.G.
中文: 重晶石粉是加重材料的一种。其密度大约为4.2S.G.
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英文: Also, discussions with London and Asian-based investors reveal a chronic underweighting of US assets and the belief that US portfolio investments are overvalued and offer a lower growth rate relative to the rest of the world.
中文: 此外，与伦敦和亚洲投资者的讨论也显示，他们正在逐渐降低美元资产的比重，并认为，美国投资组合被高估，其增长率低于全球其它地区。
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英文: An approach is available to obtain the overall sigma level of an organization based on weighting each of the critical processes.
中文: 现在，有一种方法可以根据各个步骤的重要程度来帮助一个组织获得综合的西格玛等级。
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英文: Based on the forecasting theory of the optimization weighted array, an optimization weighted array model with a runoff response linear model and a time sequential model is developed to predict daily runoff, and the optimal weighting coefficients are deriv
中文: 摘要根据最优加权组合预测原理，建立了径流响应綫性模型和时间序列模型的优化加权组合模型，以预测日径流，依据最小二乘法原理确定其优化加权系数。
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英文: Based on the in-situ observation of the firstly mined working face of Nanliang coal mine, the roof movement, the roof weighting intensity, and entry deformation and failure of the working face were analyzed.
中文: 摘要通过南梁煤矿首采工作面采前的实验研究和开采时的现场观测，分析了工作面顶板的移动、来压强度以及巷道变形破坏情况，总结了厚黏土覆盖层浅埋煤层单体长壁工作面的矿压显现规律。
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