On the range of the whole depth of the foundation, the soil is soft soil and puddly soil with small angle of internal friction of soil;
基础深度范围内土质为软土、淤泥质土,土的内摩擦角较小;
For the control response, in the whole flight speed range, the attitude angles of autogyro change small, especially the pitch angle.
全飞行速度范围内姿态变化很小,尤其是纵向俯仰角;
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