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Therefore, partial least square regression was conducted to distinguish these possible factors and to evaluate their relative importance.

上层土壤中，铝主要来源于有机键合铝，土壤水离子强度是造成铝浓度差异的主导因素。

Gas emission;Partial regression square sum;Multiple regression

瓦斯涌出量；偏回归平方和；多元回归

The paper applies the theory of partial regression square sum into selecting the main prediction indexes which influence the gas emission in the coal mine. Based on these indexes, it constructs a multiple regression model to forecast gas emission.

将偏回归平方和理论运用到影响某矿瓦斯涌出量预测指标的选取中，确定了影响该矿瓦斯涌出量的主要影响因素，根据这些主要影响因素建立了预测瓦斯涌出量的多元回归模型。

Finally, it makes a discussion and draws a conclusion that the multiple regression model which is set up through selecting the complications of influencing gas emission with partial regression square sum parameter is feasible , at the same time, it plays a role in improving the accuracy of fitting prediction ,and it could be better for forecasting and controlling the gas emission in the coal mine.

最后，通过分析，得出结论：采用偏回归平方和参数对该矿瓦斯涌出量影响因素进行优选建立回归模型是可行的，同时有利于提高拟合精度，可以更好地对该矿瓦斯涌出量进行预报与控制。

More than 30 kinds of meshfree methods are reviewed in this paper in the light of weighted residual method, and different meshfree methods can be viewed as different forms of weighted residual method and/or with different approximation functions. Various kinds of meshfree approximate schemes are presented in detail, including moving least square approximation, kernel and reproducing kernel approximation, partition of unity approximation, radial basis approximation, radial point interpolation and natural neighbor interpolation.

详尽介绍了各种无网格近似方案(包括移动最小二乘近似、核近似和重构核近似、单位分解近似、径向基函数近似、点插值近似、自然邻接点插值近似等)和无网格法中常用的各类加权余量法(伽辽金格式、配点格式、局部弱形式、加权最小二乘格式和边界积分格式等)，并讨论了数值积分方法和边界条件的处理等问题。

It has been verified that the partitioned state estimate is identical with the usual full least square estimate.

这样得到的结果与原来把电力系统状态估计作为一个最小二乘方问题处理所得的结果是一致的。

No mention is made, for example, of a vital part of the background to the party meetings, Democracy Wall—a 200-metre-long brick structure in front of a bus depot west of Tiananmen Square.

比如，没有人提到那次党的会议的一个重要背景，民主墙——天安门西侧一个公交车站前的一个200米的砖建筑。

No mention is made, for example, of a vital part of the background to the party meetings, Democracy Wall—a 200-metre-long brick structure in front of a bus depot west of Tiananmen Square. For a remarkable four months in the winter of 1978-79, until Deng decided to shut it down and jail some of its activists, citizens plastered the wall with posters calling for freedom and democracy.

例如，已经无人提及那次共党会议中一个至关重要的情况，那就是民主墙—一个位于天安门广场西侧汽车站前方，长达200米的砖体结构。1978年至 1979冬季，在这个不同寻常的四个月里，民众在该墙上贴满了呼吁自由和民主的大字报，直到邓小平决定封闭该墙并拘押了一些积极分子为止。

The front part of the house has been ruined in a big fire, only leaving the square parvis, which was designed to let more light in the house and on rainy days rain would fall into the parivs from the roof earthen wares.

这房屋的前面部分已经在一场大火中毁坏了，只留下方型的天井。天井用来采光，在雨天的时候雨水从屋顶的瓦片落入天井。

Located in the city centre, really close to the Paseo Marítimo, next to the Pontevedra Square and the historical, commercial, leisure and financial centre and trade fair.

这家位于市中心的酒店坐落在Paseo Marítimo（A Corua的海边步道），距离海滩仅50米，为客人提供宽敞舒适的现代化客房。酒店位于市中心，毗邻Pontevedra广场并靠近A Corua的历史、商业、娱乐和金融中心以及商品交易会场。

" I' d like to get some rough idea about music in the baroque ear, please."

请简要介绍一下巴罗克时期的音乐，好吗？

The results showed that the peak latency and pattern of SEPs elicited by electrical needling in LI-l1 and MP were similar. The amplitude of SEPs elicited by electrical needling in LI-l1 was higher than that of MP. There was no obvious SEPs generation when MM was electrical needling.

结果显示，电针刺激曲池穴和其邻近桡侧伸腕长肌运动点诱发性脑电波的波形和波峰时间是类似的，只是穴位的诱发性脑电波波幅较大，而电针刺激非穴位点并没有明显的诱发性脑电位。