结论：以牙槽孔至颧下嵴起始部的弧长和弦长为标准弯制注射针头，采用口内注射法进行上牙槽后神经阻滞麻醉，成功率为98％。
Conclusion: We use L as arch length and H as chord length to bend syringe needle that is used to posterior superior alveolar nerve block anesthesia by intraoral injection. The success rate is 98%.
针对国内尚无有关蜂窝构件的规范或标准可以执行的实际情况，进行了蜂窝梁腹板在纯弯状态下的稳定问题研究。
As there is no criterion or standard about castellated member at home, study of the web stability of castellated beams under pure bending condition is carried out.
结合工程实例，详细论述了土方路基回弹弯沉检测标准的确定方法。
Using an engineering example, this paper discusses the method of determining elastic deformation criterion for earth roadbed in detail.
最后提出了关于实现弯管流量计标准化的几点建议，并探讨了今后的研究方向和研究方法。
Several points to realize standardization of elbow flow meters are suggested. And the orientation and methods of the future re-search are inquired into.
冷弯性能是热轧中薄板带材的重要指标之一，冷弯试验是标准规定的必检项目，但在实际生产中经常出现冷弯不合格现象。
The cold bending property is one of the important targets for the hot rolled strip, the cold bending test is required inspection item stipulated in the standards.
冷弯性能是热轧中薄板带材的重要指标之一，冷弯试验是标准规定的必检项目，但在实际生产中经常出现冷弯不合格现象。
The cold bending property is one of the important targets for the hot rolled strip, the cold bending test is required inspection item stipulated in the standards.
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