围岩松软、呈层性显著以及受爆破震动和开采动载的反复作用是回采巷道的基本特征。

Soft and thin-bedded characteristics and dynamic load action from mining and blasting shock are some basic features of the actual mining roadways in coalmine.

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物理刺激常使用于刺激呼吸，反复的刺激像是震动床或是其他的动态刺激，都可能可以用来治疗婴儿呼吸暂停和避免后遗症。

Physical stimulation is often used to restart breathing and it is possible that repeated kinesthetic stimulation might be used to treat infants with apnea and prevent its consequences.

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