The oxygen consumption equation which is used for end point control is a proportional model or a multiple variates regression equation established by the stepwise regression method.

控制终点的氧耗方程建了比例型模型和多元回归方程，多元回归方程是按逐步回归建立的。

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Starting from principle of conservation of energy, a proportional model of sweep speed and laser power is set up by combining with the specific demand of LOM prototype manufacturing technology.

从能量守恒原理出发，结合L OM原型制造工艺的具体要求，建立扫描速度与激光功率之间的正比模型。

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The main reason is that software models can often be terribly inaccurate in unpredictable ways: clearly, the practical value of any model is directly proportional to its accuracy.

主要原因是软件模式经常会导致不可预知的严重性错误：我们都清楚，任何一个模式的实际价值与它的正确性直接成比例。

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Certainly, the Lib Dems are in a weak position to demand a more proportional electoral model from Mr Cameron after this result.

ECONOMIST: Election results

If the coalition works, voters may warm to the idea of power-sharing, and to the proportional voting systems that inevitably give rise to it. (A referendum on the alternative-vote electoral model, which the Lib Dems prefer over Westminster's first-past-the-post system, is part of the deal.) And the Lib Dems got all this despite flopping at the polls.

ECONOMIST: The new coalition government