The European Union is racing to draft a second bailout package for Greece to release vital loans next month and avert the risk of the euro zone country defaulting, EU officials said on Monday.
Through orthogonal experiment, parameter of back zonedraft multiple, roller center distance and roving twist factor are selected.
并通过正交试验对后区牵伸倍数、罗拉中心距和粗纱捻系数进行了优选。
3
A heat recovery system, utilizing the hot air from the draft fan at the first zone of a draft strand cooler for ignition, heat preservation and sintering is introduced.