地表上直接对着震源的那一点称为震中.The point on the earth's surface directly above is called the epicenter.这一要求本身表明要用多震源.This requirement manifests itself in terms of multiple sources.震源深度约6哩.The focal depth was about 6 mi....
侧导向器加紧将防止带钢从夹具滑落.Side guides that are closed will prevent strip from slipping under clamps.棉卷边缘导向器隔距太小.Closer settings of lap selvedge guides.棉卷导向器隔距太宽.Lap guides set too wide....