1·Purpose:To study the diagnostic value of using ultrasonography(US), plain film of the abdomen(KUB), intravenous urography(IVU) in acute ureteral calculous obstruction.
目的：探讨超声、腹部平片（KUB）、静脉尿路造影（IVU）对急性输尿管结石梗阻的诊断价值。
2·Objective To discuss the importance of intraoperative cholangiography for calculous patients in the biliary tract without jaundice.
目的探讨术中胆道造影对无黄疸胆道结石病人的重要性。
3·AIM To study the diagnostic value of the imaging in the negative ureteral calculous.
目的探讨输尿管阴性结石的影象学诊断价值。
4·Methods Clinical data from 46 cases by LC in acute calculous cholecystitis were retrospectively analysed.
方法对我院4 6例结石性胆囊炎急性炎症期行L C术的临床资料进行回顾性分析总结。
5·Objective: To investigate the safety and efficacy of surgical endoscopic techniques in treating calculous pyonephrosis.
目的：探讨运用腔内泌尿外科技术治疗结石性脓肾的安全性和有效性。
1·That is, a succession of inequations can be obtained directly by using convex functions or quadratic derivative symbols in calculous.
利用凸函数或微积分中二阶导数符号可以直接给出一连串不等式。
2·Comparing with the mathematical traditional calculous method, it is easier to understand and mastered without any complex mathematical operation and advanced mathematical knowledge.
与传统的数学微积分方法相比，不需要复杂的数学运算和高深的数学功底。
3·The influence of potential infinite idea and traditional teaching ideas on calculous teaching led calculous teaching of China to go wrong.
受潜无穷观、见树不见森林和传统讲灌式观念的影响，我国微积分教学陷入了误区，难以自拔。
4·This paper shows the important roles of Variable Limited Function in Calculous through several examples.
通过示例，展现了变限函数在微积分中的重要作用及其应用。