...p )输入脉冲电流激励钢弦(steel string)在磁场内作机械振动(mechanical vibration)，钢弦的振动切割磁力线(magnetic force line)，在电磁线圈内产生微弱的交变电动势，经过导线输入频率仪的激发放大器(amplifier)放大，再输入示波器(oscillograph )的垂直偏转...
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Faraday's Magnetic force line 法拉第的磁力线
magnetic line of force [电磁] 磁力线 ; 磁通量
magnetic force line pipe 太阳系角动量
magnetic force line distribution 磁力线分布
distribution of magnetic force line 磁力线分布
line magnetic force 释义磁力线
The rotation will last for ever if the permanent magnetic ring and the magnetic force line of the permanent magnet SN exist for ever.
只要永磁环和永磁体sn的磁力线永久存在，旋转也将始终存在。
Traveling-wave interaction and secondary magnetic field is generated electromagnetic force, which is a straight line to run the basic principles of electric motors.
行波磁场与次级相互作用便产生电磁推力，这就是直线电动机运行的基本原理。
Power wire in a magnetic field direction of movement of the force and the magnetic sense of direction with the current line (magnetic field) direction related.
通电导线在磁场中受力运动的方向跟电流方向和磁感线(磁场方向)方向有关。
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