Did you say we have shield volcanoes on Earth?
你是说地球上有盾状火山吗？
Earth pressure balance (EPB) shield is used most extensively in shield construction.
土压平衡式盾构机是盾构法施工中应用最为广泛的盾构机。
A new extreme high vacuum molecular shield lab. On low-earth orbit is designed.
给出了一种新型的近地轨道极高真空分子屏实验室设计。
A new extreme high vacuum molecular shield lab. On low-earth orbit is designed.
给出了一种新型的近地轨道极高真空分子屏实验室设计。
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