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bpf 英'biːp'iː'ef美'biːp'iː'ef BNC⁹⁷²³³⁺⁷ 基本例句 带通滤波器¹⁰⁰ A method was developed for determining residual bisphenol A BPA, bisphenol F BPF and their epoxy derivatives by high performance liquid chromatography. 建立了高效液相色谱分析食品罐内涂料中双酚 A BPA和双酚 F BPF环氧衍生物的方法。 dictall At last, the relationship of BER and BPF group delay is shown. 给出了误码率与 BPF群时延的关系。 fabiao By adding antiseptic N into liquid BPF, mixed bacteria in the process of packing can be obviously inhibited, which lead to the appearance of black and bad smell product. 防腐剂 N加入液体生物钾肥中,对罐装过程中杂菌污染引起的产品变黑变臭有明显抑制作用,防腐效果明显优于丙酸钠、苯甲酸钠等防腐剂。 cnki Finally, a chebyshev function BPF with SIW resonator was designed and realized by LTCC with12-layer substrate. 并用 LTCC工艺成功实现了一个由12层基片构成的 SIW谐振器切比雪夫滤波器。 cnki Finally, by using the method a2-order lumped band-pass filter BPF is designed and developed. 最后利用该方法设计并制作了一个二阶集总带通滤波器。 teleonline The higher harmonics of the rotor BPF in the fore part of the suction side are more prominent than that in the other parts of the stator blade. 转子尾迹频率的高频分量对静子叶片吸力面前缘的影响比对其他位置的影响大。 cnki The application of the bronchial stump closer has remarkably reduced the BPF's morbidity in recent years. 近年应用支气管残端闭合器可使发生率大大下降。 cnki The characteristics of noise passing through band pass filter BPF are studied. The concept of noise band width of BPF is put forward. 通过分析滤波电路对嗓声信号的影响,提出了滤波电路的等效噪声带宽。 cnki The difference of BPF between the two groups was extremely significant P<0.001, while the difference of cranial volume and brain volume was not P>0.05. 两组之间的颅腔容积和脑容积差异无统计学意义 P>0.05,而 BPF差异具有统计学意义 P0.001; cnki The operation principle and model of filtering for BPF were researched and how to use BPF to develop data filter system under Windows System was put forward. 针对海量邮件数据的处理需求和实际业务需要,设计了基于三层过滤模型的邮件挖掘系统。 http://dj.iciba.com The transmission function and the amplitude-frequency characteristic of the filter is deeply analyzed. This filter guarantees the system precision as the components of the BPF were picked with choice. 带通滤波电路是本系统消除噪声的关键部分,论文深入分析了带通滤波器的传输函数和幅频特性。 fabiao We also made the COF using frame memories and digital BPF and adders and digital balancer. The COF filter's feature is required. 利用帧存储器作延迟线,结合数字带通滤波器、加法器和数学平衡器等组成数字梳状滤波器,形成所需要的滤波特性。 cnki Band-pass filter BPF role is to allow a certain period of signals within the frequency range, while blocking signals outside this band. 带通滤波器 BPF的作用是答应某一段频带范围内的信号通过,而将此频带以外的信号阻断。 h2ofans.com Block Pulse Function BPF is applied in analysis and synthesis of optimal control for PWM systems, and a piecewise constant solution is obtained; 块脉冲函数 BPF用于 PWM系统的分析及最优控制,获得分段恒定解; cnki But the BPF said the campaign was misleading and sought to reassure the public that using the controversial chemical was safe. 但是,带通滤波器说,这种活动是误导和要求,让市民放心,使用有争议的化学品是安全的。 com Conclusion The lower limit of95% confidence inter mathematical relationship between BPF and age could be used as an objective criteria for automatic quantification of brain atrophy with computer. 结论 BPF与年龄之间函数关系的95%可信区间下限,可作为计算机自动定量诊断脑萎缩的客观标准。 iciba Experimental results show that under the effect of the rotor wake, the dominant frequencies of pressure fluctuations on stator blades are the rotor blade passing frequency BPF and its harmonics. 实验结果表明:在转子尾迹的影响下,静子叶片表面的波动频率是转子的尾迹频率及其倍频。 cnki First of all, the reasons of the effects of BPF group delay on the OFDM system is deduced in theory. 首先从理论上分析了射频 BPF的群时延特性对 OFDM系统产生影响的原因。 fabiao From1976 to1996,11 patients with Postpneumonectomy associated Bronchopleural Fistula BPF were treated surgically. 从1976年至1996年,我科对11例肺切除术后发生支气管胸膜瘘的病人进行了外科治疗。 iciba Subtotal resection of scapula with intratransposition of subscapular muscle and musculus infraspinatus is a new surgical procedure and has a good result for treating stubborn recurrent BPF. 肩胂骨次全切除一种扩大胸改的新术式加肩胂下肌及冈下肌胸内转移对那些顽固性支气管胸膜瘘病人有良好的效果。 cnki The deduced result shows that the non- ideal group delay characteristic of BPF will cause interference on the output signal of the OFDM system. 通过理论推导得出非理想的 BPF的群时延特性,对系统输出信号会造成干扰。 fabiao The result of the research supplies a reference to the design of group delay of BPF in the RF system. 本文的研究结论为射频系统中设计发射机 BPF的群时延特性设计提供了参考依据。 fabiao This paper is to research the effects of the RF BPF group delay characteristics on the bit error rate BER of the OFDM receiver. 本论文主要研究 OFDM系统中的射频 BPF的群时延特性对 OFDM接收机误码率的影响。 fabiao Three kernel filter mechanisms were introduced in the paper and working principle of BPF was analyzed emphatically. 本文介绍了三种内核过滤机制并重点分析了 BPF的工作原理。 iciba |