主腔乳化泡沫管 foam tube primary barrel
盆腔自主神经 pelvic autonomic nerve
腹主动脉瘤腔内修复术 EVAR
盆腔自主神经丛 pelvic autonomic nerve plexus ; PANP
主要包括盆腔器官脱垂 pelvic organ prolapse ; POP
单腔主动脉内气囊 SIAB
主动脉腔内修复 endovascular repair ; EVR
主动脉腔内修复术 endovascular repair ; EVR
胸主动脉腔内修复术 Thoracic endovascular aortic repair
·2,447,543篇论文数据，部分数据来源于NoteExpress
两个与心脏相连的主静脉叫做大静脉或腔静脉。
The two main veins that connect to the heart are called the vena cava.
箱型结构的主梁，内腔无法涂漆防锈蚀，为了防止水汽侵入腐蚀主梁内腔，必须保住主梁内腔的密封性。
The box type structure, cavity cannot antirust paint corrosion, in order to prevent moisture intrusion corrosion beam cavity, sealing the inner cavity of the main girder must keep.
其目的是当熔化金属凝固和收缩时往型腔里补充熔化金属，从而防止在主铸件中产生孔隙。
The purpose of this is to feed the molten metal to the mold cavity as the molten metal solidifies and shrinks, and thereby prevents voids in the main casting.
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