double crossing over tetrad

例句：

1. 1.The double crossing over tetrad is a complex system that requires careful analysis.
   双重交叉过四元体是一个复杂的系统，需要仔细分析。
2. 2. The researchers found that the double crossing over tetrad could be used to improve crop yields.
   研究人员发现，双重交叉过四元体可以用来提高作物产量。
3. 3.The double crossing over tetrad has been proposed as a potential solution to the problem of climate change.
   双重交叉过四元体被提出作为解决气候变化问题的潜在解决方案。