According to the navigational conditions of the ship lock entrance transitional channel, the fleet mix and the towboat power in Naji Hydro-junction, the ship resisitance was calculations and compared with the towing force, and the navigation conditions of transitional channel was analyzed as well.

根據(jù)那吉航運樞紐船閘口門外連接段的水流條件中文字幕第一页在线、舶合及推輪功率，計算了船舶航行阻力东南亚高清无码视频，并與推輪推力比較最新亚洲人成在线观看99，分析了連接段的航行條件。

SEM analysis finds that the fractures are intercrystalline plus quasi-cleavage fractures under quasi-motionless state;with the increase of stress intensity factor,fractureschange from transcrystalline quasieleavage fractutes to microvoid-coalescence dimple plus cleavage frac-tures,The increase of fracture toughHess of 8090Al-Li alloy under high stress intensity factor is associ-ated with the deformation mechanism and the change of precipitation Free Zone of grain boundary.

掃描電鏡分析發(fā)現(xiàn)黑葡萄五月天，準靜態(tài)下的斷裂為沿晶和準解理混合斷口香蕉视频A片；隨著應力強度因于的增加，斷裂從準解理斷裂過渡到準解理和顯微空穴聚集的韌窩斷裂舶混合斷口小蝌蚪视频成人影院免费观看下载。高應力強度因于率下斷裂韌度的提高與其變形機制和晶界無沉淀區(qū)的變化有關久久AV老司机精品网站导航。

The alloy boasts good shaping property, high corrosion resistance, weldability and fatigue strength, medium static strength, is used to make airplane oil tank, oil pipe, oil pipe, metal sheet and instrument for vehicle and vessel, street lamp post and riveted wire.

典型用途：此合金有良好的成型加工性能，抗腐蝕性亚洲日韩专区网站，可焊性韩国精品无码永久在线观看，疲勞強度與中等的靜態(tài)強度，用于制造飛機油箱操逼亚洲色、管超碰98人妻，以及交通車輛、舶的鈑金件色欲色香天天天综合在线、表网站黄色视频免费、燈支架等。