In the light of the 5 periods of mobile gravity observation results of the Ji-Lu-Yu network, the relation between the gravity and the Fengqiu earthquake is discussed.
利用冀鲁豫测网的流动重力5期观测成果，探讨了重力场变化与封丘地震的关系。
The liberated areas in Hebei were a significant part of Jin-Cha-Ji division, Jin-Ji-Lu-Yu division, and North China division.
河北解放区是晋察冀、晋冀鲁豫和华北等解放区的重要组成部分。
The liberated areas in Hebei were a significant part of Jin-Cha-Ji division, Jin-Ji-Lu-Yu division, and North China division.
河北解放区是晋察冀、晋冀鲁豫和华北等解放区的重要组成部分。
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