对低马赫数叶轮离散噪声的机理及计算方法进行了研究，并推导了离散噪声的声压计算式、低马赫数下近似计算式和轴心线上的计算式，还实验验证了计算模型。

Research is carried out on the discrete noise theory and calculation method, the calculation model of discrete noise and the approximate formula under small Mach number are verified by experiments.

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本文推导了一个普通适用于各类氧化还原滴定化学计量点电位通用计算式，并对该通用计算式的应用进行了讨论。

This article means to study the universal formula to calculate potential of stoichiometric point in REDOX titration and the application of this universal formula was discussed.

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推导出接触爆炸作用下线性硬化材料板的最大变形量计算式和塑性变形范围的计算式。

The computing formulas of the maximal deformation distance and the plastic area limits of the linear hardening plates were deduced.

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I'll leave the algebra there, transfer it up here, q1* = q2* = a - c over 3b.

先把算式留在那好了,我在这里再抄一遍吧,q1*=q2*=/3b

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Good, so if I plug q2 = 0 into here, this term disappears and I just get a - c over 2b.

把q2=0代入到算式中,这部分就没有了,只剩/2b

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What q2 makes this equal to 0 and Katie's answer is solving out the algebra here is that q2 that solves this must be a - c over b.

2为何值时这个算式等于0呢,凯特回答其实就是算出这个的解,即,q2=/b

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