English translation for "portal clearance"

门座净空
入口净空
隧道口净空

Related Translations:

portal:  n.波特尔〔姓氏〕。n.1.(大建筑物的)入口；正门；桥门；隧道门。2.〔诗〕门，入门。3.【解剖学】门静脉。4.【计算机】网络出入口，门户站点〔指万维网上提供查寻服务的网站〕。adj.【解剖学】门的；肝门的；门静脉的，关于门脉的。 portal vein 门脉，门静脉。

trussed portal:  桁架式门座

portal press:  门式压力机

web portal:  门户网站入口网站万维网门户网络门户

music portal:  音乐入口网站

portal canal:  门管

portal phlebogram:  门静脉造影片

portal reclaimer:  龙门式回收机

opposed portal:  对穿野

post portal:  门形柱梁

Similar Words：

"portal canal" English translation, "portal circulation" English translation, "portal circulation time assay" English translation, "portal cirrhosis" English translation, "portal cirrhosis of liver" English translation, "portal congestion" English translation, "portal control block table" English translation, "portal crane" English translation, "portal crane bucket" English translation, "portal entry" English translation