We determined the frequency of hydronephrosis at initial diagnosis, and its effect on recurrence and progression in patients with superficial bladder cancer.
我们评估浅表性膀胱癌患者其初次诊断肾积水率对复发和进展的影响。
The valaciclovir group of one month therapy could significantly reduce recurrence frequency ( P <0.01), but not the other two groups.
万乃洛韦一月组能显著降低患者复发频率（P<0 .0 1） ，另两组则否。
The prognosis is excellent with long survival even with incomplete tumor resection. Most patients have a significant reduction in seizure frequency. Tumor recurrence is very rare.
预后良好，甚至不完全切除都会有较长的生存期。大多数病人的癫痫发作有明显减少。肿瘤复发极少见。
Although there is a long history in China, it is very difficult and unreliable to extrapolate frequency curve to long recurrence design floods.
尽管中国有悠久历史，但利用历史洪水展延洪水频率曲线以求稀遇设计洪水，仍感困难和不可靠。
This paper establishes the general recurrence steps of using difference method for the frequency equation and mode shapes of discrete multi-mass shear structures.
以船舶辅机的梁式隔振结构为对象，运用模态分析方法和自适应算法，推导并分析了梁式结构振动主动控制的基本原理和方法。
This paper establishes the general recurrence steps of using difference method for the frequency equation and mode shapes of discrete multi-mass shear structures.
以船舶辅机的梁式隔振结构为对象，运用模态分析方法和自适应算法，推导并分析了梁式结构振动主动控制的基本原理和方法。
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