基本解释n.心内膜同根派生 英汉例句用作名词 (n.)Advance the catheter through the guiding sheath to the area of the endocardium under evaluation.Use both fluoroscopy and electrograms to aid in proper positioning.通过导鞘将导管推入在接受检测的心内膜区，并在合理的位置上辅以透视和电图。