db的例句大全

The data acquisition design for the receiver is discussed and the influence of different sampling rates on the significant digit of ADC is analyzed. The IF oversampling technique and PCI-9820 acquisition card are adopted. The dynamic range of the receiver is larger than ( 75 dB.)

在分析接收系统数据采集方案和不同采样速率对数据采集有效位影响的基础上，采用中频过采样技术采集数据，提出选用PCI-9820采集卡的数据采集方案，其动态范围大于75dB。

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Compared with the distributed radio resource scheduling algorithm, a tri-angle cellular architecture with distributed antennas was proposed, the related centralized layer could descend interference down to 13.4? dB.

与分布式的调度方案相比，基于这种小区架构的集中式无线资源调度方案，可以使干扰降低13.4dB。

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The Synchronous timer is used as a major Component of the CDAS S/ DB System.

同步定时器是CDASS／DB系统的重要部件。

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Our examples use@ DB commands and LC LSX.

我们的例子使用了@DB命令和LC LSX。

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Method Two experimental groups of guinea pigs were conditioned using a 0.5 kHz octave band noise ( OBN) at 85 dB, 6 h/ d for 4 d. The subjects were allowed to recover for 3 d after conditioning.

方法两组声预处理组豚鼠在中心频率0.5kHz85dB倍频带噪声作用下，连续暴露4d（6h/d）后，在无噪声情况下恢复3d。

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Two control groups received 0.5 kHz and 1 kHz OBN respectively at 110 dB for 1 h without prior sound conditioning.

两组对照组豚鼠不经声预处理，分别直接暴露在中心频率0.5KHz和1KHz110dB的信频带噪声下，暴露1h。

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By applying this predistortion linearizer to a WCDMA power amplifier, the ACPR can be improved by ( 5 dB.)

实验证明，将预失真发生器与WCDMA功放配合使用，能将功放的邻道功率泄漏比（ACPR）改善5dB。

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Db ( crud) and view update functions

db（crud）和视图更新函数

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The filter with maximum reflectivity about 20 dB, bandwidth larger than 1 nm is obtained. The results are qualitatively analyzed with supermode theory.

实验中获得了最大反射率约为20dB，线宽大于1nm的滤波器，并采用超模理论对实验结果进行了定性分析。

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The simulation results show that the performance improvement of proposed algorithm is superior to conventional differential demodulation by 1.4 dB at a BER of 10-4 in AWGN channel.

仿真表明，相对于软判决译码时传统的差分解调，该算法在误比特率BER为10-4时在AWGN信道中有1.4dB的性能改善，在Rician信道中同样有显著的性能改善。

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DB : Three days inside, and he's already about turning rabbit.

才在牢里呆了三天, 你 就想着要大闹天宫.

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Install , patch, upgrade DB 2 database. Also work for DBA daily duty.

熟悉对数据库的日常维护工作,包括安装, 升级和备份,以及权限的设置与更改.

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The PA shows maximum power gain and 24.5 dBm OP 1 dB with 36 % power-added efficiency ( PAE ).

功率放大器的最大功率增益为26.5dB,输出1dB压缩点为24.5dBm,功率附加效率 ( PAE ) 为36%.

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The amplitude defines how loud the sound is and is usually measured in decibels ( dB ).

声波实质上是 正弦曲线,它有振幅和频率.

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The application of the methods can guarantee the coherency of associated data in DB system.

此方法可以保证数据库系统中关联数据的一致性.

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Sound in county seat is 55.2 db.

县城区域环境噪声年平均值为55.2分贝.

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Provides 18 dB-per-octave cutoff at 80 Hz.

80赫兹时,提供每八度18分贝的截频.

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The results indicate 3 db transducer bandwidths accord with demands of AOM placed in cavity basically.

结果表明,3db换能器带宽基本上符合腔内声光调制器的要求.

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We can commit transparent access of heterogeneous databases with federal database technology on DB 2 II.

在子数据源和综合数据库之间利用联邦数据库技术实现DB2到异构数据源的透明访问,支持从db2到异构数据源的读,写操作.

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Faraday are incorporated into the ultra-low distortion motor, further reducing? harmonic distortion as much as 20 dB.

超低失真马达采用法拉第振铃, 进一步降低谐波失真达20分贝之多.

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