down-stayed composite beam 下撑式组合粱
tectonic cracks on down beam 下弦杆分缝
down cross-beam of pylon 索塔下横梁
Inside the control room, physicists and engineers cautiously shot the beam down part of the tunnel, stopping it before it went all the way around.
在控制室内,物理学家和工程师们小心翼翼地在隧道的一部分将光束击落,在其完成全程之前把它拦截下来。
Once you arrive at that planet you can beam down from your spaceship and attempt to complete the mission.
当你达到那个星球,就可以从你的太空船降落到星球上尝试完成任务。
The main reason of the main beam down deflection was that the most complex stress exceeded the admissible value and achieved the yield limit value.
主梁下挠变形的主要原因是受热引起的最大复合应力超过许用值,达到了屈服极限值,强度不满足要求。
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