joist
特殊用法bar joist1.■【建】轻钢搁架binding joist1.■【建】用于加固的梁或拱boarding joist1.■板条托梁bridging joist1.■横梁common joist1.■普通搁栅end joist1.■端搁栅floor joist1.■楼地板搁栅plate-girder joist1.■工字板梁retractable steel joist1.■可缩钢梁sidewalk joist1.■人行道搁栅siege joist1.■炉底托梁tail joist1.■半端梁track joist1.■托轨梁trim joist1.■托架, 过梁trussed steel joist1.■桁式钢质栏栅two-way joist1.■双向梁wood joist1.■木搁栅, 木托梁