方法:选用可视性好的鸡蛋清作为热凝介质,选用5mm等长工作端(active tip)而口径分别为22G、21G及20G的成对Baylis射频电极针,按从2mm到16mm的以2mm等差间距平行排列深入在鸡蛋清中,给予90℃的射频热凝180...
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目的：研究不同功率下超声龈下工作尖的不同工作端对牙根面的影响及其工作效率。
Objective: To study the effect on the root surfaces and the work efficacy following ultrasonic subgingival scaling with different output power and different parts of work tip.
计算结果显示，设计的高速电主轴单元主轴轴承、主轴前端温升理想，工作端轴向热位移很小。
The results indicate that temperature rises of the designed high-speed spindle bearings and the front of the spindle are very ideal and the thermal displacement of the front is very small.
你放弃工作搬到地球的另一端，可真不简单。
It's a big step giving up your job and moving halfway across the world.
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