device n. 1.设计,计划;方法,手段。 2.〔pl.〕意志,欲望。 3.谋略,策略,诡计。 4.器具,器械,设备,装置。 5.图案,图样;花样;纹章;标记,商标;(纹章上的)题铭。 a safety device 安全设备。 a pressure device 压力计。 a homing device 自动寻的[导引]装置。 leave sb. to his own devices 让某人自行其是。
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。
Supporting hand - held devices , such as pdas and radio frequency devices 支持手持设备,例如pda和射频设备。
Due to the good performance of gaas devices of high frequency , high electron mobility and low noise , the high frequency devices are mostly made of gaas materials now 由于gaas器件优良的高频、高电子迁移率、低噪声性能,所以现在高频器件一般都选用gaas材料。
This paper describes the application of variable frequency device in fcs . the hardware configurations and con - trol strategy configurations of fc $ and the principle of vfd are introduced 论文叙述了变频调速技术在现场总线控制系统中的应用。介绍了该fcs的硬件配置、控制策略组态方案和采用变频调速技术的节能原理。
Win2000 bed lift is of personalized design , ultra - stable operation , to offer quietness and comfortableness to the greatest extent to patients with warm colors . it is provided with variable voltage variable frequency device , to produce the best operating curve in accordance with the physiological requirements of human body , to show make the safe , comfort , stable and excellent perfomance in the whole process during the operation of the lift from start , acceleration , deceleration to stop . optional cut - off emergency leveling device may be equiooed at the demand of user to ensure that the passengers inside the lift can be rescued in case of power cut - off accident Win2000系列病床电梯以人性化的设计,超平稳的运行,给予病患者最大程度的安静舒适增添温馨的色彩。采用先进vvvf调频调压调速装置,按人体生理要求由电梯优化产生最佳的运行曲线,使电梯的起动加速减速停止过程处处体现安全舒适平稳的卓越性能。根据用户要求可选装停电应急平稳装置,确保以外停电时,被困电梯内的乘客能及时获得解困。
At the same time , according to the decision drawn by experiment process , chose the representative product from middle - frequency device and high - frequency device to do the experiment during practice production , then do batches of production , cheek the consistency . the result proved that both acceptance ratio tested by probe and frequency 同时,依据实验过程中的结论,在实际生产中在中频器件和高频器件中选代表产品实验进行批量生产,检测其一致性,结果表明,光刻探针测试成品率以及片与片之间的频率一致性均有大的提高。