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- line frequency locking 行频锁定
- FLOCK button. Pressing the Frequency Lock button will disable all frequency determining controls on the front panel, to prevent accidental changes of frequency. 频率锁定,按下这个按钮前面板所有频率控制按钮将被禁用,防止意外改变频率。
- Typically caused by distortions to the frequency components below the horizontal line frequency . 它沿水平方向逐步扩展,通常是由低于行频的频率畸变造成的。
- Because characteristic of electron gun job is restricted, scanning frequency included line frequency and field frequency two concepts. 由于电子枪工作特点限制，扫描频率包括了行频与场频两个概念。
- The display distinguishes the method of the rate exaltation a lot of, we may Discussion from Order to be apart from,line Frequency, Field Frequency so and so. 显示器分辨率提高的方法很多,可以从带宽、点距、行频、场频等方面讨论,而这些因素都是相互联系的。
- For the system V10800, for instance, an attenuation change of about ±0.6 decibel for one repeater section can be reckoned with at the highest line frequency. 例如，对于V10800系统来说，在最高线路频率下，一增音段的衰减变化可视为±0.;6分贝左右。
- Because of the frequency lock loop traction PLL filter can be designed very narrow, with very good noise suppression performance, to meet the precise requirements of carrier phase tracking. 由于有锁频环的频率牵引，锁相环路滤波器可以设计得很窄，具有很好的抑噪性能，满足精确跟踪载波相位的要求。
- For the system V10800, for instance, an attenuation change of about ?.6 decibel for one repeater section can be reckoned with at the highest line frequency. 例如，对于V10800系统来说，在最高线路频率下，一增音段的衰减变化可视为&%23177;0.;6分贝左右。
- Line frequency withstand voltage test is a test to verify low-voltage appliance's solid insulation and the capacity to withstand short time over-voltage. 工频耐受电压试验是验证低压电器固体绝缘及其耐受暂态过电压能力的试验。
- Principle of line frequency withstand voltage test equipment, the relation between test transformer capacity and leakage current setting value and cautions at test are described. 描述了工频耐受电压试验设备原理、试验变压器容量与泄漏电流整定值之间的关系以及试验时的注意事项。
- The person that pass by the path asks a pedestrian, pedestrian Dan Yun nods line frequency or prevent a river from 15 north, come 40 on the west battalion cropland. 道旁过者问行人，行人但云点行频或从十五北防河，便至四十西营田。
- The display distinguishes the method of the rate exaltation a lot of, we may Discussion from Order to be apart from ,line Frequency, Field Frequency so and so. 显示器分辨率提高的方法很多,可以从带宽、点距、行频、场频等方面讨论,而这些因素都是相互联系的。
- frequency Locking servo control circuit 锁频伺服控制电路
- equivalent Q resonant frequency locking 等Q共振锁频
- modulation-free laser frequency locking 无调制锁频
- Digital Automatic Frequency Lock 数字自动频率锁定
- An analog artifact where bright objects in the picture cause a shifting of level that extends horizontally all the way across the picture. Typically caused by distortions to the frequency components below the horizontal line frequency. 在画面显示中亮的物体引起亮度漂移的一种模拟的非自然信号。它沿水平方向逐步扩展,通常是由低于行频的频率畸变造成的。
- digital frequency lock loop(DFLL) 数字锁频环
- Normal Mode Rejection Ratio. The ability of an instrument to reject an AC interference (usually of line frequency) across its input terminals. Usually expressed in decibels at a frequency. 常模抑制比仪器抑制其输入端子上交流干扰的能力（通常是线路频率）。通常表示为某个频率下的分贝值。
- This system uses the battery as supply power, and adopts instrumentation amplifier wtih high performance as preamplifier, so that we can improve the CMRR and input impedance, and decrease the line frequency noise effectively. 本系统由电池供电，采用高性能的仪表放大器进行前置放大，以提高共模抑制比和输入阻抗，有效抑制工频干扰。
