...造稳定性 地面稳定性 地质灾害 [gap=1405]Key words regional crustal stability,tectonic stability,ground surface stability,geological hazards ...
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Besides, the whole stability of the ball buddy is increased since that the lower surface of the added direction indicator enlarges the contact surface with ground.
此外，由于增设的方向指示器下平面扩大了与地面的接触，提高了球托的整体稳定性。
Ground surface settlement is an important factor to evaluate surrounding rock stability of shallow tunnel.
地表沉降是判断浅埋隧道地层稳定的一个重要指标。
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