Arch Rock Formation - Joshua Tree National Park - California,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、百度、360、招商银行、工
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C Darwin's Arch, a famed rock formation in the Galapagos Islands has taken on a new shape.The top of the Arch collapsed this week into the Pacific Ocean due to natural forces."Obviously all the people from the Galapagos felt it was a shame because it's something we're familiar with si...
Turret Arch - Rock formation in Arches National Park in Utah USA,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、百度、360、招商银
Arch formation and pillar yield in jointed rock : Proc 4th Congress International Society for Rock Mechanics, Montreux, 2–8 Sept 1979, Vol 2, P17–23. Publ Rotterdam, A A Balkema, 1979 Barrett J.R., Grumitt B., Wical M.doi:10.1016/0148-9062(80)90631-2None...
A smooth shaft production process is important to ensure the safe and efficient development of mineral resources. Due to the influence of ore rock and the mismatch between rock size and ore pass design, an arching phenomenon occurs frequently during actu
Pantelleria Trapani district Sicily Italy Europe view of Cala Levante with the arch of the elephant natural rock formation,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
A method to estimate the pressure arch formation above underground excavation in rock massPressure archArching effectUnderground excavationRoof stabilityNumerical simulationArching effect has been attributed as a factor of roof stability of underground rock excavations, which affects excavation geometry and ...
Once it had been confirmed that the spatial distribution of the materials mainly reflects the activity of the Neanderthals (but keeping in mind the short-distance postdepositional movements detected), it was time to interpret the anthropic use of the rock shelter during the formation of archaeoleve...
The Arch - rock formation near Tyulenovo.Tyulenovo Cliffs Stone Bridge ,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、百度、360、