参加哈尔滨冰雪狂欢节的游客需要多穿几件衣服，当数位相机停止工作时，你也不必惊慌，因为那儿的天气实在是太寒冷了。
Visitors to Harbin's popular ice and snow festival should dress in layers -- and don't be surprised if you're digital camera acts up because of the cold weather.
他们建议，如果术者希望将上位相邻节段的多裂肌束去神经化降至最低，应利用经皮技术在头侧节段置入椎弓根螺钉。
They recommended that pedicle screw insertion at the cephalad level be performed percutaneously if one desires to minimize denervation of the multifidus complex at the cephalad adjacent level.
结论：单节段腰椎固定融合术后上位相邻节段影像学退变与临床效果之间无显著相关性。
Conclusion:After single-segment instrumented fusion, there is no significant correlation between the radiologic degeneration of cranial adjacent segment and its clinical results.
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