你可以改装老鼠夹，但是不允许改变弹簧和铁杆的运行方式，除非是减小老鼠夹被触发后的弹力。
You may alter the mousetrap but you are not allowed to change the way the spring and bar function except to reduce the force when it is triggered.
方法用血管内球囊或弹簧圈闭塞椎动脉治疗9例颅内后循环不可夹闭动脉瘤。
Methods 9 patients with posterior circulation intracranial unclipped aneurysms were treated with detachable balloons or GDCs to occlude proximal vertebral artery of aneurysms.
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