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频率限制
1、frequency generator───[计]频率发生器
2、impose restriction───[统计]施加约束
3、frequency range───频带; 频段;[电子][通信]频率范围
4、density restriction───密度制约
5、frequency───n.频率;频繁
6、restriction orifice───节流孔板
7、restriction enzyme───[遗]限制性内切酶;[遗]限制酶
8、caloric restriction───[医]热限制
9、restriction───n.限制;约束;束缚
1、If the cross terms of the spatial frequencies for the unit cell of periodical object are much smaller than the main frequency terms, the restriction of the Angle is not necessary.───当周期物体的单胞空间频率交叉项比主频率项小到可忽略的程度时,角度限制失效。
2、According to the export need, provides the power source, the voltage, the frequency restriction product.───根据出口需要,提供受电源、电压、频率限制的产品。
3、The method of instantaneous value comparison for source current control of unity power factor rectifier possesses advantages of simplicity as well as valid restriction for maximum switching frequency.───在单位功率因数整流器中,利用瞬时值比较法来控制电源电流,不但控制简单,还可有效限制器件的最高开关频率。