a cell phone tower on blue sky background. the vertical orientation of the frame.,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版商业图片、艺术插画、矢量、视频、音乐素材、字体等,已先后为阿里巴巴、京东、亚马逊、小米、联想、奥美、盛世长城、百
Cell phone transmitters piggybacking on a steel frame hydro tower against a blue sky,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版商业图片、艺术插画、矢量、视频、音乐素材、字体等,已先后为阿里巴巴、京东、亚马逊、小米、联想、奥美、盛世长城
tower is 60 m.The length of the crossbeam is 60 mandthe span of the crossbeam is 40 m.The crossing frame is erected on both sides of the crossed object,and the crossbeams on both sides are connected in the air to form an 80 mspan sealing structure.The finite element model is built ...
Design Technology of Climbing Support Frame of Large Tower Crane in CCTV Main Building Large internal climbing whip-typed tower crane M1280D and M600D are adopted to hoist in the construction of steel structure in CCTV main building.It is fir... Z Chen,Y Zhang - 《Construction Technology》 ...