Deep impact first visited comet Tempel 1 in 2005, crashing an impactor into the comet to help scan its composition from afar.
“深度冲撞”号于2005年第一次造访了彗星Tempel 1，为了分析该彗星的构成，它抛出了一个冲撞器。
The mixed hay composition of the suitable combination was in the ratio of 1 : 0. 9 of grass to legume.
混合干草中苜蓿与老芒麦的组成重量比为1：0.9，搭配合理，营养完全。
Because it cannot reach the two constrained conditions, previous forecast value based on time series composition data cannot add up to 1.
由于不能满足成分数据两个约束条件，以往对按时间顺序收集的成分数据预测，其预测值之和不等于1。
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