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。
By adjusting the frequency converter gear according to this law , the constant paper tension is attainable 然后利用此规律通过交流变频调速器对电机转速的控制,实现了砂布砂纸生产线的恒定张力控制。
The experimental inherent frequency and the corresponding mode of the frequency converter are obtained by analyzing the experimental signal 通过对实验信号进行分析,得到了其实验的低阶固有频率和相应振型。
This project is applied to the control circuit of the frequency converter power source of for measuring ground resistance in an electric substation 此方案成功地应用于变电站接地电阻测量变频电源控制电路中。
Puts forward a scheme of energy efficiency innovation by adding a frequency converter to the original constant flow secondary circulating pump 对水泵系统进行了节能改造,在原有的定流量二次循环泵上增设变频器。
The energy saving principles and necessity of application of frequency converter to direct spinning polyester filament air - conditioned equipments were introduced 摘要介绍直纺长丝空调设备上应用变频器的节能原理和必要性。
Abstract : the method to realize rise and fall o f elevator and control of the door switch by a frequency converter was introduc ed 文摘:介绍了电梯改造中用一台变频器实现电梯升降及门开关控制的方法,以及电梯调试的一点体会
The speeds of adhesive - binding & adhesive - wheel can get adjustable speed out of grade control by the frequency converter according to the need of arts & crafts 该机胶订速度及胶轮速度可根据工艺需要能通过变频器进行无级调节器速。
Grading standard of quelity for frequency converter used in cabled distribution systems primarily intended for sound and television signals operating between 30mhz and 1ghz 30mhz 1ghz声音和电视信号的电缆分配系统频率变换器质量分等标准
The insulation class f or class h . the insulation of open - loop u / f condition of . structure has the adaptability to high carrie frequency voltage supplied by frequency converter 电动机的绝缘等级为f级或h级,绝缘结构具有对变频器输出高载波频率电压的适应能力。