ecpeffective core penetration有效: effective; valid; efficaciou ...岩心: core穿透: penetrate; pierce through; p ...深度: degree of depth; depth岩心穿透深度: ecp; efficiency of core penetration下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:有效岩心穿透深度，即可在微信中查询翻译
