However, in plastic solar cells the liberated electrons and holes bind strongly to one another, forming particle-like entities known as excitons.

然而，塑料太阳能电池向另一释放电子和空穴形成激子时束缚力很强。

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Strain-based FLD is strongly affected by the strain path and has brought much inconvenience to the study of forming limit under complex strain paths.

因极限应变构成的FLD受应变路径的影响很大，在研究复杂应变路径的成形极限问题时带来极大不便。

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