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- Carbonium ions in solution derive much of their stability from solvation effects and are formed more easily in more polar media. 正碳离子在溶液中由溶剂效应获得更高的稳定性，而且在极性较高的介质中更容易形成。
- The two systems of government are polar opposites. 这两种政体正好相反。
- The common model of polarized medium is introduced, a detailed analysis is given to the polarization of medium, and finally the application of molecule's centrobaric model of is pointed out. 摘要介绍介质极化的一般模型，对极子极化进行了详细的推导，并通过分析后，指出分子重心模型的适用范围。
- Most insect do not live in polar region. 大多数的昆虫不在极地地区生存。
- English is not the usual medium of instruction in our school. 英语不是我校通常使用的教学语言。
- An ASCII control character, end of medium. 一种ASCII码控制字符，媒体结束符。
- This cloth is of medium quality. 这种布质量平平。
- Are there any animals in the polar circles? 南极圈和北极圈内有动物存在吗？
- He prefers a happy medium in life. 他在生活中甘居中游。
- Located or found in one of the Polar Regions. 环极的，围绕极地的位于或发现于一个极地区域中的
- A fish in water is in its natural medium. 鱼在水里就是在自然环境中。
- Water is the natural medium in which fish live. 水是鱼类赖以生存的自然环境。
- In spite of vigilance a polar bear escape from the zoo. 尽管警戒很严，北极熊还是逃出了动物园。
- There is a medium in all things. 凡事都有中庸之道。
- Sound travels through the medium of air. 声音通过空气这一媒介传播。
- The polar region is the habitat of the polar bear. 北极地带为北极熊的栖息地。
- Greek culture penetrated Persia through the medium of the Syrians. 通过叙利亚人作媒介，希腊文化渗透到波斯。
- Although they can swim, the polar bears are terrestrial animals. 北极熊虽然会游泳，但也是陆栖动物。
- In spite of vigilance a polar bear escaped from the zoo. 尽管警戒很严，北极熊还是逃出了动物园。
- The polar bear's habitat is the icy waters of the Arctic. 北极熊的栖息地是冰冷的北极海域。
