expansible

an expansible antenna.

折叠式天线

It is shown that expansible ettringite forms in the topochemical reaction,and crystallizes in-situ on the surface of unhydrated aluminate minerals and orients radially.

发现能够产生膨胀的钙矾石是由局部化学反应所生成；它们在未水化的铝酸盐矿物表面晶，呈放射状生长。

Objective To explore the effect and survival time by setting covered metallic expansible-self stents to treat postradiation esophago-tracheal fistula.

目的:探索放置金属带膜自膨式支架治疗放疗后食管气管瘘的功效及生存时间。