礼岷前陆盆地经历了早期深海—半深海的复理石沉积阶段和晚期陆相磨拉石沉积阶段。
The Lixian-Minxian foreland basin undertook abyssal-bathyal flysch deposition at its earlier evolution stage and continental molasse stage at its later evolution stage.
据估计，在最高的海底山中，几乎一半是在深海海底，而且那里海洋生物特别丰富。
It is estimated that roughly half of the world's highest seamounts-areas that rise from the ocean floor and are particularly rich in Marine life-are also found in the deep ocean.
缅因只剩下了70条深海捕鱼船，不足20世纪90年代的一半，近十年减少得尤为迅速。
There are only 70 groundfishing vessels left in Maine, less than half the number in the 1990s, and a far cry from decades past.
晚中新世以后，盆地进入浅海半深海沉积环境的裂后热沉降期。
After Late Miocene, the basin got into a post_rift thermal subsidence stage in a shallow to semi_deep sea environment.
半深海-深海相区、滨浅海相区和三角洲相区是较为有利的油气分布区。
The bathyal - abyssal facies , littoral facies , neritic facies and delta facies are beneficial to and gas exploration.
半深海区是微暗发亮的中央地域，因为它没有进行光合作用生产者。
The bathyal zone is the dimly lit middle zone, which because it has little sunlight does not contain photosynthesizing producers.
半潜式钻井平台是深海石油勘探开发的关键设备，而双井架钻机已逐渐成为第六代深水半潜式平台的主流配置。
Semi-submersible drilling platform is key equipment for deep water exploitation and dual derrick RIGS has been main platform of 6th semi-submersible drilling platform.
阐述了超高强度的淬火回火钢（调制钢）在深海半潜式钻井平台中的应用。
This paper describes the application of high strength quenched and tempered steel in semi-submersible drilling platform.
阐述了超高强度的淬火回火钢（调制钢）在深海半潜式钻井平台中的应用。
This paper describes the application of high strength quenched and tempered steel in semi-submersible drilling platform.
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