1) lower frequency limit
频率下限
1.
In view of the possible problem of frequency conversion adjustment air compressor air valve working condition, this article carries on the mathematical analysis and the simulation to air valve when low frequency working,the lower frequency limit causes the compressor air valve normal work and does not have the detention closure had been determined.
针对应用变频调节的空压机气阀工作状况可能产生的问题,对空压机在低频运行时的气阀进行工作特性的数学分析与模拟,确定了使压缩机气阀正常工作及不发生延迟关闭的频率下限,对变频调节压缩机频率范围选择有一定参考作用。
2.
The lower frequency limit was determined when the compressor air valve works normally and does not presents delay closure.
对空气压缩机在低频运行时气阀工作特性进行了数学分析与模拟,确定了使压缩机气阀正常工作及不发生延迟关闭的频率下限,可供变频调节压缩机选择频率范围作参考。
2) low limit frequency
下限频率
1.
The methods for calculating low limit frequency and coupling capacitance are discussed in detail.
详细讨论了下限频率和耦合电容的计算方法。
3) lower cut-off frequency
下限截止频率
1.
An analytical formula variety of the lower cut-off frequency of amplifier with parallel negative-feedback;
并联负反馈放大器下限截止频率f_(Lf)解析式的多样性
4) lower limit percenage
限下率
5) limiting frequency
极限频率
1.
Results show that the movement limiting frequency is 253 Hz,thus provide theoretical guide for the frequency setting value of ageing and testing experience,to avoid the abnormal movement with incorrect driven frequency.
分析了电控共轨供油泵进油电磁阀衔铁组件的运动过程,使用Simulink软件对衔铁吸合和回落过程运动时间进行了模拟计算,得到电磁阀部件运动的极限频率为253 Hz,为电磁阀部件在磨合和试验过程中控制系统设定的控制频率提供了理论依据,避免了因输入频率过高而导致的电磁阀部件运动不正常。
6) finite-frequency
有限频率
1.
The computation of 3-D finite-frequency sensitivity kernels for surface-waves;
面波有限频率法3-D灵敏度核函数的计算
补充资料：频率计量(见时间频率计量)
频率计量(见时间频率计量)
frequency metrology: see time and frequency metrology
口n IQ liliang顷率频率计皿(f比quency metrolo盯) 计t。见时闰
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条