The prediction formula of yearly production and the approximation formula for reduction between the instantaneous production and yearly production are also presented.
给出了年产量预测公式及瞬时产量与年产量相互换算的近似公式。
This paper gives the elastic differential equation of collapse of perforated casing, and a general formula for reduction factor of elastic collapsing by perturbation method.
建立了射孔段套管弹性抗挤性能分析控制一般方程，并采用摄动理论给出了的孔段套管弹性抗挤能力降低系数一般计算公式。
A process and formula for gold imitated coloring of copper and copper alloy by cathodic reduction were advanced in detail.
详细介绍了一种铜及铜合金阴极还原着仿金色工艺及其配方。
The method used to determine volume-reduction ratio for scroll compressor with modified profile is proposed. Formula for compression pockets and volume-reduction ration are given.
提出了一种修正型线涡旋压缩机内容积比的确定方法，给出了压缩腔容积和内容积比计算公式。
The method used to determine volume-reduction ratio for scroll compressor with modified profile is proposed. Formula for compression pockets and volume-reduction ration are given.
提出了一种修正型线涡旋压缩机内容积比的确定方法，给出了压缩腔容积和内容积比计算公式。
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