目前国内外对该模型的研究还比较少，我们希望通过在跷跷板做的一些试验性的工作，能总结出更为实用的结论。
There were few researches on it . We expect that based on the experiment on seesaw , some practicable result could be got .
目前国内外对该模型的研究还比较少，我们希望通过在跷跷板做的一些试验性的工作，能总结出更为实用的结论。
There were few researches on it . We expect that based on the experiment on seesaw , some practicable result could be got .
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