... ECC EXPORT CUSTOMS CHARGE 出口报关费 ERD ERD 汇率差 EXC EXPRESS CHARGE 快递费 ...
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erd erd
以上为机器翻译结果，长、整句建议使用 人工翻译 。
ERD Wells are widely adopted due to its great economic benefits and its applicability for special purposes, while the drag along the horizontal section has limited the promotion of ERD Wells.
大位移井技术因其具有巨大经济效益并能够满足特殊作业的目的而得以迅速推广应用，但水平井段摩阻扭矩又成为了制约大位移井推广应用的关键因素。
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