The bottom of the fish tank is covered with a layer of fine sand. 鱼缸用细沙垫底儿。
And he saw fish that leapt out of the water and fish that lived on the bottom of the sea and fish that could walk on their fins. 他在这里见到了能跃出水面的鱼、能生活在海底的鱼,还有能用鳍行走的鱼。
So it is a comparatively simple step from locating the sea bottom to locating a shoal of fish. 因此,从测定海底深度到测定鱼群的位置这一进展相对较易。
The steel pipe supporting and bamboo slab rubber bottom dieing construction in fish bellied continuous box beam bridge 鱼腹式连续箱梁桥的钢管支架竹胶板底模施工
The boys went down to the dry bottom of the sea to gather all the fish they could carry. 这些男孩走到干涸的海底拚命拾取他们带得动的渔获。
The bottom of the sea dried up, and they could see many fish lying here and there. 大海顿时干涸,他们看到海底到处躺着很多鱼儿。
The water was clear to the bottom. A school of tiny fish flicked hither and thither. The best fish swim near the bottom. 河水清澈见底,一群小鱼悠然地游来游去。〔谚语〕好鱼居水底,要得宝物不容易。
Eellike Atlantic bottom fish with large almost vertical mouth. 大西洋似鳗的底栖鱼,大嘴巴几乎呈垂直方向。
Application of determining Methemoglobin in Fish Body in Emergency Monitoring So it is a comparatively simple step from locating the sea bottom to locating a shoal of fish. 鱼体高铁血红蛋白检测在应急监测中的应用从测定海深到测定鱼群,这一进展比较容易。
According to the data selected from bottom trawl fishery resource monitoring in the East China Sea from 1997 to 2000, the species composition and seasonal variation of small-sized fish were analysed. 根据1997~2000年东海区底拖网渔业资源调查资料,分析和讨论了东海区小型鱼类的种类组成和季节变化。
Status and Prospect of Bottom Fish Stocks in East China Sea and Yellow Sea 东、黄海底鱼资源现状及其展望
They bring the bottom water rich in nourishment to the surface, and then improve the growing conditions of ocean organisms and these have great impact on the ocean ecology environment, fish industry and breeding. 可将富含营养盐底层水带到表层,改进了海洋生态环境,因而对于海洋生态环境的保护、渔业捕捞及海洋养殖业的发展等具有指导意义;
In the bottom trawl catches, mainly by the fish, cephalopods and crustaceans composed of three groups. 在底拖网渔获物中,主要由鱼类、头足类和甲壳类三大类群组成。