The contents of the fatty acids were determined by using the normalization method. 用峰面积归一化法得出各类脂肪酸的相对百分含量。
By combining equivalent linearization method with harmonic balancing technique, the approximate analytic response was obtained. 将等效线性化法与谐波平衡法相结合，求出了系统的近似解析响应。
