The utility model relates to tunnel class, particularly a piling base structure applied to the construction of immersed tube tunnels.
本实用新型涉及隧道类，特别涉及一种应用在沉管隧道工程中的桩基础结构。
Pressurizing, continuous and transonic wind tunnel is the first one in our country, and it is the world ' s first class tremendous high - speed aerofoil wind.
增压连续式跨音速风洞在我国尚属首例，是具有国际先进水平的大型高速翼型风洞。
Pressurizing, continuous and transonic wind tunnel is the first one in our country, and it is the world's first class tremendous high - speed aerofoil wind.
增压连续式跨音速风洞在我国尚属首例，是具有国际先进水平的大型高速翼型风洞。
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