flexible tube短语⁸⁴³²⁰⁺⁸ 基本例句 柔性管,挠性管,软管 For intravascular laser irradiation on blood ILIB, we design a kind of intravenous laser-inject needle composed of fiber-duct, duct stand, flexible tube and laser coupling head. 为研制用于激光血管内照射治疗的一次性静脉导光针。我们设计了由导光光纤、针管、针管座、软管和耦合头组成的的导光针。 cnki