两田制（two-field system）首先将村中土地按照每个农户的实际口粮消费需要进行分配，农户所得到的
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two field system 二圃制
two field memory system 两场存储制
·2,447,543篇论文数据，部分数据来源于NoteExpress
So the fact that new weapons programs may take 20 years to reach the field in a political system that operates on two- and four-year cycles is a real threat to keeping those programs on track.
FORBES: Top Five Reasons Weapons Programs Are Canceled
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