second harmonic imaging的用法和样例：
例句
- The second harmonic three-stage gyroklystron amplifier is designed and simulated by means of PIC simulation software.
应用粒子模拟软件对设计的二次谐波三腔回旋速调管放大器进行了数值模拟。 - It theoretically explains the occurrences of direct current and second harmonic current from the stator windings when an induction motor operates in asymmetry.
从理论上解释了不对称运转磁场在定子绕组上产生二次谐波和直流电的原因。
