take an underground
take an underground
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1. Take the underground Tour for an eerie view of the remains of 'Old Seattle', devastated by the fire of 1889.
参加地下游览可以看到'老西雅图' 1889年火灾破坏的残留的奇异的情况。
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2. take an underground vehicle for example, the optimization process of the endergonic structure is shown, and finally the reasonable structure is acquired.
以某地铁车车体为应用对象，给出该方法对地铁车车体吸能部件结构优化设计的全过程，获得了车体端部合理的吸能结构。
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3. take an underground copper mine as studying object, on which the surface has to be protected, the mining method of sublevel filling method with roof reconstructing is studied.
以某地下铜矿为研究对象，研究了地表要求保护的前提下极破碎矿体的顶板再造上向分段充填采矿法。
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