Features of aortic valve anomalies and pattern of changes of cardiac structure were the important consulting information for the selection of operation method.
瓣膜畸形类型及钙化程度、心内结构及功能改变情况是选择手术方法时的重要参考信息。
Conclusion: the cause of biliary fistula used to be incorrect selection of operation method, careless work in the operation and unreasonable postoperative management.
结论：胆瘘的原因多为手术方法选择不当、术中操作不仔细及术后处理失当。
Least square method of polynomial or the method based on the given function are used to fit pump characteristic curve in pump selection or operation.
在水泵的选型或运行中，通常采用多项式的最小二乘法或根据假设的函数关系来拟合水泵性能曲线。
Presents the selection and calculation method and quantity determination of the circulating water pumps, and the operation characteristics of the pumps in parallel.
介绍了循环水泵的选择计算方法，循环水泵台数的确定原则，以及水泵并联运行的特点。
Describes the principle, power selection, operation and maintenance method as well as the maintenance cautions of UPS.
介绍了UPS的工作原理、功率选择、使用维护方法及维修注意事项。
This method can be used to evaluate the capacity of a system for biological removal of phosphorus in design and operation, and to guide the selection of process and the designing of operation plan.
该方法可在设计和运行中用于对系统的生物除磷能力进行评估，从而指导工艺选择和运行方案设计。
Studies the mutation operation, fitness calculation and competition-selection scheme of evolutionary programming method.
对进化规划的变异操作、适应度计算及竞争选择方案进行了研究。
The operation cost method relatively has more advantages, which is the optimal selection of cost calculation method in modern enterprise cost management.
作业成本法相对来说优点更多，是现代企业成本管理中成本计算方法的最佳选择；
Cerebral reperfusion syndrome can be avoided by careful selection of the operation method and improved post-operative treatment.
仔细选择手术方法和加强术后治疗可以有效地避免脑再灌注综合症。
Methods: To analyse 156 cases which were cured by peritoneoscope in the selection of incision quantity, the method of surgical operation.
在对异位妊娠的治疗中腹腔镜技术因其创伤小、痛苦少，越来越多的代替了开腹手术。
Methods: To analyse 156 cases which were cured by peritoneoscope in the selection of incision quantity, the method of surgical operation.
在对异位妊娠的治疗中腹腔镜技术因其创伤小、痛苦少，越来越多的代替了开腹手术。
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