黑雁属
- 与 黑雁属 相关的网络例句 [注：此内容来源于网络，仅供参考]
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Geese gabble goose单数 Any of various wild or domesticated water birds of the family Anatidae, and especially of the genera Anser and Branta, characteristically having a shorter neck than that of a swan and a shorter, more pointed bill than that of a duck.
鹅：任何一种野生或家养的鸭科的水鸟，特别是指雁属和黑雁属的水鸟，特征是颈比天鹅的短，嘴比鸭的短而尖
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Any of various wild or domesticated water birds of the family Anatidae, and especially of the genera Anser and Branta, characteristically having a shorter neck than that of a swan and a shorter, more pointed bill than that of a duck.
鹅：任何一种野生或家养的鸭科的水鸟，特别是指雁属和黑雁属的水鸟，特征是颈比天鹅的短，嘴比鸭的短而尖
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The investigation results showed that there were 26 species of the waterfowl of Anatidae, belonging to 7 orders, of which 1 species belong to gradeⅠ key state-protected species and 3 species (Cygnus columbianus, Anser albifrons and Branta ruficollis) belong to gradeⅡ key state-protected species.
结果表明：共调查记录到雁鸭类7属26种，其中国家重点保护动物4种，包括国家Ⅰ级重点保护动物1种［中华秋沙鸭］和国家Ⅱ级重点保护动物3种［小天鹅(Cygnus columbia-nus)、白额雁和红胸黑雁］。
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Any of several small, dark wild geese of the genus Branta that breed in arctic regions, especially B.
黑雁一种黑雁属小型黑色野鹅，产于北极地区，尤指黑雁属，具有黑色的颈和头
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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。
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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。
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Have a good policy environment, real estate, secondary and tertiary markets can develop more rapidly and improved.
有一个良好的政策环境，房地产，二级和三级市场的发展更加迅速改善。