YAO's academic reorientation and his later entanglements with the Han Learning school influenced deeply on his establishing Tong Cheng school.
姚鼐的学术转向及其后来与汉学派的复杂纠葛，对其建立桐城派产生了深刻影响。
The Tong Cheng Reach is the lower part of the Yangtze River, where the water abstraction is active and gives impact both on the location of the tidal limit and on that of the tidal current limit.
通澄河段是长江下游感潮河段，沿江抽、引水频繁，对潮区界和潮流界都有影响。
Din Tong-Ren, Li Cheng-Zhi. Ordinary differential equations (second edition). Beijing. 2002.
丁同仁，李承治。常微分方程(第二版).北京。2002。
Din Tong-Ren, Li Cheng-Zhi. Ordinary differential equations (second edition). Beijing. 2002.
丁同仁，李承治。常微分方程(第二版).北京。2002。
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