Methods:To estabish myocardial ischemia model rats with occulation coronary artery and design experimental method with latin square.
方法：以冠状动脉前降支结扎法制造急性心肌缺血模型；
The experiment was in a complete Latin Square design.
试验采用完全拉丁方设计。
Methods The traps were placed in bedrooms and sitting rooms and rotated nightly approximately following a Latin square design.
方法根据拉丁方设计方案，把诱蚊灯置于寝室和客厅，每晚轮流置灯。
Noticing that the Latin square has order like permutation and combination, this paper gives algorithm of searching standard Latin square fellowing this order.
文章根据排列与组合可计数的特点，给出了利用位序法求标准拉丁方的算法。
Noticing that the Latin square has order like permutation and combination, this paper gives algorithm of searching standard Latin square fellowing this order.
文章根据排列与组合可计数的特点，给出了利用位序法求标准拉丁方的算法。
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