That the coil bracket is changed from angle iron to thickened trough steel can increase intension of the coil bracket and the general rigidity and improve its distortion-resistant ability.是什么意思_That the coil bracket is changed from angle iron to thickened trough steel can increase intension of the coil bracket and the general rigidity and improve its distortion-resistant ability.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句