base frequency中文是什么意思

• 固有频率
• 基本频率
• 基础频率
• 基频

• base    adj. 1.贱的，劣的；卑下的，低级的；卑鄙的。 2. ...
• frequency    n. 1.屡次，频仍，频繁。 2.(脉搏等的)次数，出现 ...
• motor base frequency    电机频率
• time base frequency    时基频率; 时墓频率
• time-base frequency    时基频率
• automated frequency assignment data base    自动频率指配数据库
• at the base    在底部
• at the base of    在...的脚底
• base    n. 1.基底，基，根基，底座；底层，底子；(纪念碑等的)基址；(山)麓。 2.【军事】基地，根据地。 3.根据，基础。 4.【化学】碱；【纺织；印染】(染色)固色剂；媒染剂；【药学】主剂。 5.【数学】底，底面，底边，基点，基线；基数。 6.【体育】起点，出发线；【棒球】垒；目标。 7.【语言学】语根；词干。 an air base 空军基地。 the economic base 经济基础。 first [second, third] base【棒球】一[二、三]垒。 a base angle 底角。 a bayonet base 卡口灯座。 a code base (信息论)编码基数。 a prisoner's base捉迷藏。 base of operation 作战根据地。 at the base of 在…之麓；在…的基部。 change one's base 〔口语〕撤退。 get to first base 取得成功的。 off base 〔口语〕 1. 大错特错地。 2. 冷不防地。 3. 〔美俚〕傲慢的。 vt. 把…的基础放在(…)上 (on upon), 以(…)作为…的根据。 base one's arguments upon facts 以事实作论辩根据。 base one's hopes on …把希望寄托在…上。 adj. -less 无基础的，无根据的；无原由的。 adj. 1.贱的，劣的；卑下的，低级的；卑鄙的。 2.(子女)庶出的；私生的。 3.(语言)不纯正的，粗俗的。 4.【音乐】低音的。 n. 【音乐】低音；低音部。 n. -ness (品质等的)恶劣；下贱，卑鄙。
• base on    把……基于,以……为根基; 本该如此should; 建立在什么基础之上; 依据/基于; 以为根据; 以为基础; 在…基础上
• base the    魔鬼基地
• base-in    基线内
• base…on    根据
• on base    九十度梳法; 占垒
• the base    基地; 卧底骑兵
• the base of    在的脚底
• frequency    n. 1.屡次，频仍，频繁。 2.(脉搏等的)次数，出现率；频度；【物理学】频率，周率。 audio frequency音频。 a high [low] frequency高[低]频。 the frequency of earthquakes in Japan 地震在日本的频繁发生。 mean [median] frequency中频。 resonance [resonant] frequency谐振频率，共振频率。 ultrahigh frequency超高频。 ultralow frequency超低频。 very high frequency甚高频。 very low frequency甚低频。
• base area; base    根据地
• base electrode; base    基极
• money base base money    基础货币; 经常帐户
• frequency generator frequency doubler    频率发生器倍频器
• frequency pushing and frequency pulling    频率推挽
• frequency range; frequency channel    频段
• frequency-modulation and voice frequency    调频与音频
• frequency-modulation frequency converter    频率调制与转换

• Research into fpga - based frequency measurement module of equal accuracy and its implementation
  的等精度测频模块的研究与实现
• In this paper , we proposed three approaches : watermark scrambling , amplitude shaping and adaptive prediction - based frequency domain shaping
  在本文中，我们提出了三种方法：水印随机化，幅度整形和自适应预测频率域整形。
• Cross - correlation method used in get based frequency part and realized balancing function . gao huawei ( mechanical design and theory ) directed by vice - prof
  采用互相关原理提取振动信号基频分量，计算振幅和相位，完成了动平衡功能。
• At last the results obtained are compared with those of t - beams , which shows : 1 ) the base frequency of t - beam and box girder bridge is different not only in the value but also in vibration direction
  通过与此无关t型梁自振特性的结果进行比较，得出了一些重要结论：从t型梁到整体箱梁，梁的基频发生了改变。
• By means of modulus measurements of two kinds of timber , when the frequency of vibration is higher than the base frequency , the elastic modulus is increased with frequencies ; but the loss modulus decreases with frequencies
  在纵振动过程中，两种木材的动弹模量随着频率的增大而增大，而耗散因子随着频率的增大而减少。
• Taking uplink as an example , both simplified analysis and intensive computer simulations are presented to offer comparisons among frn enhanced systems with the proposed schemes , with a known channel - borrowing based frequency planning scheme and the conventional cellular system without relaying
  同时，相对于侧重覆盖面积的频谱分配方案，侧重于频谱效率的频谱分配方案的频谱复用距离较小，从而有更高的频谱利用率，其重点在于解决频谱效率问题。
• Basing on the operating characteristics of the pmsm machine tool spindle drive system , a novel frequency multiplication circuits which can be switch to 2 or 4 times of base frequency is proposed in the paper . it resolves the paradox of using a same photoelectric encoder under high and low speed operating condition of motors
  它能够根据指令实时的对编码器反馈回来的电机速度信号进行2倍频或4倍频处理，解决了用同一个编码器来检测电机低速和高速的矛盾。
• 2 ) the value of base frequency , which is the first order vertical - bending vibration , is bigger in box girder bridges than those of t - beams . it shows that the vibration performance of box girder bridge is better than t - beams . 3 ) when considering the shear deformation of beam , the vibration frequency calculated by is bigger than those not considering the shear deformation
  T型梁的基频为横向振动，而整体箱梁的基频为竖向弯曲振动；整体箱梁的一阶竖弯振动的频率比t型梁得到了提高；整体箱梁的动力性能优于t型梁；考虑剪切变形后，梁的自振频率降低，对于整体箱梁其降低值接近于5 ，在分析时不应忽略。
• The tripled frequency converter is applied to the terminal optics assemble , its main function is completing the transmission of the light and energy by the optics crystals , at the same time transforming the base frequency light into tripled frequency light . the function requires the frequency converter to have good stability and high orient precision
  三倍频模块应用于终端光学组件中,其主要功能是通过两块光学晶体完成光路和能量的传输,同时将基频光转换成三倍频光,这种功能要求光学晶体有良好的稳定性和较高的定位精度。
• The exhaust noise contains complex noise elements , including the exhaust noise with a base frequency measured in the number of exhausts in unit time , the resonance noise of the gas column in the pipe , the gas stream blowing noise at the exhaust manifold , the exhaust gas jetting and impact noise , the helmholtz resonance noise of the cylinder , the karman eddy noise and the turbulent noise inside the exhaust system
  排气噪声包含了复杂的噪声成分：以单位时间内排气次数为基频的排气噪声、管道内气柱共振噪声、排气歧管处的气流吹气噪声、废气喷注和冲击噪声、汽缸的亥姆霍兹共振噪声、卡门涡流噪声及排气系统内部的湍流噪声等。