Moreover, the variation law of mold surface hardness and interface heat transfer coefficient were studied.

另外，研究了消失模铸造法铸型表面硬度、界面换热系数的变化规律。

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The interrelated analysis law of grey system is essentially the analysis of interrelated coefficient.

灰色系统关联分析法实质上是关联系数的分析。

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Secondly, error modules of main braking were established and errors of the guidance law designed above were analyzed by error sensitivity coefficient matrixes.

其次，建立了月球软着陆主制动段的误差模型，并运用误差敏感系数矩阵对所提出制导律的制导误差进行分析。

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To make more sense of this, the International Tennis Federation, the game's law-makers, have produced a chart which simply matches the coefficient of friction (friction) and coefficient of restitution (bounce) to produce a court pace rating.

CNN: Tennis interactive: Why clay is so different