查询词典 paddlelike

Any of various aquatic, carnivorous mammals of the families Phocidae and Otariidae, found chiefly in the Northern Hemisphere and having a sleek, torpedo-shaped body and limbs that are modified into paddlelike flippers.

海豹：任一种海豹科和海狮科的海栖食肉类哺乳动物，主要生活在北半球，有光滑鱼雷形的躯体和已演化为桨状的鳍

Seal Any of various aquatic, carnivorous mammals of the families Phocidae and Otariidae, found chiefly in the Northern Hemisphere and having a sleek, torpedo-shaped body and limbs that are modified into paddlelike flippers.

海豹：任一种海豹科和海狮科的海栖食肉类哺乳动物，主要生活在北半球，有光滑鱼雷形的躯体和已演化为桨状的鳍

A large extinct marine reptile having paddlelike limbs that was common in Europe and North America during the Mesozoic Era .

蛇颈龙属常见于欧洲和北美洲中生代，有桨状肢已灭绝的一种大型海洋爬行动物

A large extinct marine reptile having paddlelike limbs that was common in Europe and North America during the ''.

蛇颈龙属常见于欧洲和北美洲中生代，有桨状肢已灭绝的一种大型海洋爬行动物

Any of various herbivorous aquatic mammals of the genus Trichechus, having paddlelike front flippers and a horizontally flattened tail and found in warm coastal waters of Florida, northern South America, West Africa, and the Caribbean.

海牛一种海牛属食草性水生哺乳动物，长有蹼状前鳍，居中扁平的尾巴，产于美国佛罗里达州、南美洲北部、西非和加勒比海地区海岸温暖的水域中

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。