OBJECTIVE: to evaluate the effect of anterior cervical plate on single section anterior cervical discectomy and fusion (ACDF).
目的：评价颈椎前路钢板对单节段颈椎间盘切除椎间植骨融合的影响。
Application of large section KDP crystals in the study of laser fusion and stateofart in the study are introduced in the paper.
介绍了大截面KDP 晶体在激光核聚变中的应用，并简述了该晶体的研究动态。
The Barrier Penetration Model has been used to calculate the heavy ion fusion cross section and it does give a good description of the experimental data in existence.
本文利用势垒穿透模型计算重离子融合反应截面，我们发现理论计算结果同现有的实验数据符合得相当好。
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