The torch can bring higher arc voltage with lower fluctuation by elongating the arc.该喷枪能够提高电弧电压并减小电弧电压波动.If the input voltage is plus three, it comes out as minus six.如果输入的电压是+3伏, 那么输出的电压便是-6伏。A high - voltage output fly...
The Negro minstrel is touring the country.那个黑人歌舞团正在全国各地巡回演出.A strong love has sprung up between the minstrel and the king.于是吟游诗人与国王之间就产生了深厚的感情.The young minstrel had a rare, rich voice.这个青年歌手有一幅稀有的嘹亮嗓音....