常見例句雙語例句Lower Crystal Springs Dam, USA (1906*) – curved gravity dam下水晶泉大壩, 美國(1966年)---弧形重力壩The 21.4m (70ft) high gravity dam is essentially an 18-bay gated spillway.4米高的重力大壩基本上是一座18孔的泄水壩。The project comprises the construction of a 101 m high concrete gravity dam, spillway, powerhouse and navigation lock.項目具體內(nèi)容包括:(1)建設(shè)一座101米高混凝土重力壩、泄洪道、廠房和船閘; 返回 gravity dam