rings

"近日，户外运动品牌Patagonia近期因在天猫旗舰店推出"地球使用费"政策引发热议，该政策要求消费者在购物时预付一笔物流包装费（首件15元，每加一件5元），收货后不退货可退还费用，若退货则扣除费用并捐赠给环保项目，品牌称其目的是减少网购对环境的影响。"

"The article studies semiperfect rings with a Nakayama permutation, focusing on the double annihilator property and size conditions."

"The research is sourced from ArXiv."

"The article's context is an ArXiv paper."

"The research focuses on the prediction of beam transverse position, phase, and length."

"Smartfunc converts docstrings into LLM-Functions."