Acidizing fluids' type, concentration, jet pulse frequency, treatment time and interval treated may be selected according to degree of formation plugging.
该工艺可根据地层堵塞情况及程度，选择酸液种类、酸液浓度、射流脉冲频率、处理时间和处理层位。
Methods Orthogonal experiment was designed with the content of total flavonoids as index, and with ethanol concentration, the ratio of material and solvent, extracting time and frequency as factors.
方法以乙醇体积分数、料液比、提取时间、提取次数为考察因素，以总黄酮含量为测定指标，采用正交试验优化香附总黄酮的最佳提取工艺。
It has the properties of high time-frequency resolution and energy concentration as well as tracking instantaneous frequency etc.
它具有很高的时频分辨率、能量集中性和跟踪瞬时频率等特性。
Unlike the traditional kernel function methods to suppress cross terms, our method not only reduces the interfering cross-terms but also preserves the superb time-frequency concentration of the WVD.
不同于传统的抑制交叉项的核函数方法，该方法抑制交叉项的同时，保持WVD了高时频聚集性。
The result proved that the algorithm is at an advantage considering about both computational complexity and time-frequency concentration capability.
比较结果表明，该算法在运算复杂度与时频局域化能力综合考虑的前提下具有优势。
The result proved that the algorithm is at an advantage considering about both computational complexity and time-frequency concentration capability.
比较结果表明，该算法在运算复杂度与时频局域化能力综合考虑的前提下具有优势。
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