prf

Results; The effective rate of TZD and PRF were 92. 85% and 62. 85% respectively ( P < 0. 01).

结果：曲唑酮的有效率大于布洛芬，分别是92.85%和62.85%（P<0.01）；

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Three pulse cancellation method is used and the PRF is programmable.

该对消器采用三脉冲对消方案,脉冲重复频率可编程.

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The Design of AGC System for Signals Exhibiting Rapid Changes in Average Strength and Unknow PRF

信号快速变化且PRF未知时比幅单脉冲接收机的中放AGC系统

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Many temperature sensitive MR parameters, such as spin-lattice relaxation time T1, water diffusion coefficient D and water proton resonance frequency ( PRF), can be exploited for MR temperature mapping.

磁共振温度成像可基于多种温度敏感的磁共振参数，如自旋-晶格驰豫时间T1、扩散系数D和水质子自旋频率（PRF）。

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Compared with the normal group and the PRF group, the average areas, mean diameter and area density of nerve fibers after operation in the RFTC group was higher ( P < 0.05), but the quantity of nerve fibers was less ( P < 0.05);

射频热凝组即时神经纤维的平均面积、平均直径和面密度高于正常组和脉冲射频组（P<0.05），但数量低（P<0.05）；

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We have people at the PRF base stealing the nukes.

我们派人去人民革命阵线基地偷那些核武器。

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Synthesized signals with different pulse repetition frequencies ( PRF) and main vibration frequencies ( MVF) were presented to the brown planthopper.

利用DAASIAS对褐飞虱雌、雄虫分别回放不同脉冲重复频率PRF和主振频率MVF组合的人工模拟信号，根据对信号敏感的试虫比例，筛选出褐飞虱雌。

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The membership number on entry form and the PRF should be identical.

报名表上的会员编号必须与付款记录表相同.

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In production environments, the noise immunity and high PRF makes it ideally suited to-line testing systems.

对于生产环境, 其抗扰度和高刷新率使得该设备可以适合理想的线性探测系统.

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Objective: To observe the effects and side-effects of trazodone ( TZD) and analgesic ibuprofen ( PRF) in the treament of persistent somatoform pain disorder.

目的：观察曲唑酮与止痛剂对持续性疼痛性躯体形式障碍的疗效与副反应。

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Members should bring along One cheque, Payment Record Form ( PRF ), original membership card and Entry Forms.

会员须携同一张支票 、 一份付款记录表 ( PRF ) 及会员证正本并连同所有报名表递交.

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High PRF and inverse receiver are often used in radar missile guidance.

在雷达导引头中经常采用高PRF倒置接收体制.

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This paper presents a method extracting target acceleration by using discrete Wigner-Ville distribution under low pulse repetition frequency ( PRF) and a finite number of samples, velocity information ( Doppler frequency) of target can be obtained simultaneously by using the time-frequency analysis method.

提出了一种在低脉冲重复频率（PRF）和对目标采样数有限情况下提取加速度信息的方法。用这种离散时频分析方法同时也能获得目标的速度信息（多普勒频率）。

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The method using triple PRF is able to correct errors automatically, and can detect the maximum unambiguous range.

用三重PRF解模糊数法具有自动纠错能力，且可检测最大距离达到三重PRF最大不模糊距离。

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