# a calculation formula

• 计算公式

## a calculation formula的用法和样例：

### 例句

1. Based on the morphological characteristics of riverbed of tidal estuaries, a calculation formula for the widening rate of the estuarine regulation line is derived.
摘要根据潮汐河口河床形态关系，推导了河口治导线放宽率的计算式。
2. Based on the coupling relationship among effective thrust, rotation speed, penetration rate and drillability index, a calculation formula is established.
基于钻进过程中有效轴压、转速、穿孔速率和可钻性指标间的耦合关系，建立了可钻性指标的计算公式。
3. This paper also presented a calculation formula for computing the upper limit of total sum that the singular positions may probably be engenderd in arbitrary complicted multiloop planar mechanism.
还给出了任意复杂多环路平面机构可能产生奇异位置总数的上限计算公式。最后举例说明了一个双环复杂机构的奇异位置求解过程。
4. In this paper, a calculation formula of a spiral antenna with input impedance is deduced, then the geometrical size of a spiral antenna is optimized based on the related technical standard.
然后,在使天线输入阻抗满足技术要求的条件下,对螺旋天线的几何尺寸进行了优化设计。
5. According to the characteristics of double wall corrugated filter well pipe and its failure,a calculation formula of its critical confining pressure was induced by using elastic stability theory.
针对双壁波纹塑料滤水管的结构及破坏特点，应用弹性稳定理论，推导了该种管材的临界围压力计算公式，并分析其影响因素，确定了实际耐围压能力。

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