This model has considered many sorts of medium, the simulation of excavation process and construction sequence, and the semi - infinite plane of surface factor as well.

该模型考虑了多种介质、开挖过程和施工顺序的模拟以及地表因素的半无限平面等问题。

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To compute the mean of many time shift values by shifting time window can help to eliminate the interference of random and other noises with surface factor, thus lineup statics may be obtained.

采用滑动时窗求出多个时移值的平均值，即可消除随机干扰和其它干涉波对地表因素的影响，最终得到纵向一致的静校正值。

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Erbitux, for example, binds to a cell-surface protein called epidermal growth-factor receptor (EGFR).

例如，艾比特思和名为表皮生长因子受体(EGFR)的细胞表面蛋白的结合。

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Could this be a factor in why the Surface Pro is already being sold out?

FORBES: Links 10 Feb: Microsoft's Surface Pro Sells Out: But How Many Did They Release?

The cells that make up our bodies are outnumbered within and on the surface of our skin by microorganisms by a factor of 10 to 1.

FORBES: Yogurt Is Probiotic, Why Not Your Steering Wheel?

Airships demonstrate a law of increasing returns: doubling the length increases the surface area (and hence weight) by a factor of four while the volume (and hence lifting capacity) goes up by a factor of eight.

ECONOMIST: Pushing the envelope