Description is made on the principle and application result of the short group bolting of slushing roadways in loosened rock.
论述了短锚杆群碎裂岩石中耙道的原理及实施效。
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You may not get any cardio, but you'll most likely make some new friends. And with each day, you'll see your cat come alive in amazing ways, bolting, scaling, leaping and becoming one with the wild world around him.
你可能不会做任何有氧运动,但你很可能会结交一些新朋友。每一天,您都会看到您的猫以惊人的方式活跃起来,狂奔、攀爬、跳跃,并与周围的野生世界融为一体。