本文介绍了近年来关于第五种力的理论及实验情况。

In the paper, We present the recent theory and experiments of the fifth force.

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是否存在一种与物质成份相关的中程力（通常称为第五种力）?还有其它相互作用力存在吗?这是人们一直追寻的基础研究课题之一。

Is there the intermediate-range composition-dependent force (usually called the fifth force)? Is there also other basic interaction? This is one of the fundamental problems in physics.

youdao

是否存在一种与物质成份相关的中程力（通常称为第五种力）?还有其它相互作用力存在吗?这是人们一直追寻的基础研究课题之一。

Is there the intermediate-range composition-dependent force (usually called the fifth force)? Is there also other basic interaction? This is one of the fundamental problems in physics.

youdao