Objective To investigate the feasibility of exposing cephalic vein with horizontal incision on the chest and the successful rate of implanting pacing leads using guide wire and split sheath.

目的探索经胸横切口暴露头静脉及使用导引钢丝、静脉鞘管引导放置起搏电极导线的成功率及临床意义。

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Introduced the principle of design and the main performance of railway links up grounding wire with alloy sheath and railway signal links up grounding wire with conductive plastic sheath.

介绍了合金护套铁路贯通地线与导电塑料护套铁路贯通地线的设计原理及主要性能。

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Composite stainless steel tube optical fiber unit, PDPE inner sheath, medium carbon steel wire armour, Ditumen coating, polypropylene yarn wrapping covering.

不锈钢管光纤单元，聚乙烯绝缘内护套，钢丝铠装，沥青浇灌，聚丙烯绳外被。

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