n.门框
=doorcase.
Mother held on to the doorframe and almost fell. 母亲手扶着门框，几乎跌倒。
A suit of doorframe spot frame clamp. 门框点框夹具一套。
My head bumped against the doorframe. 我的头磕在了门框上。
Due to carelessness, his head hit the doorframe with a loud bang. 他不小心把头撞到了门框上,一声巨响。
CTY1C is channel section doorframe stacker,Don't sideload and over load. CTY1C为槽钢门架装卸车,绝不可偏载超载使用。
Four can open normally, doorframe, threshold and so on not any distortion. 四门均能正常开启，门框、门槛等没有任何变形。
