Yukonof Canada, nearby Alaska, has a comfortableexquisite polar environment of the Arctic Circle. Sledding dogs are the most faithful fellow of Eskimo;
加拿大的域空，接近美国的阿拉斯加，拥有北极圈里舒适、优美的极地环境。
Like brown bears and polar bears, sloth bears may have evolved in an environment with few trees.
和棕熊和北极熊一样，树懒熊可能是在树木稀少的环境中进化而来的。
The polar peoples are still relatively numerous; few outsiders have been able to adapt to the beautiful but harsh physical environment.
北极地区仍然有相对较多的民族；很少有外来的人能够适应这里美丽但是恶劣的自然环境。
The head groups and phosphate are polar, that is they prefer to be in an aqueous environment.
头部和磷酸基是极性的，也就是说它们倾向于水性的环境。
Polar vascular plants have attracted attentions due to the special environment where they grow.
极地维管植物因其所处环境的特殊性而备受关注。
This simple and general process is environment-friendly, and the products obtained are amphiphilic and dispersible well in most of the polar and nonpolar solvents.
该制备方法具有一定的普适性，而且简单实用； 涉及的反应条件相对温和，获得的产物具有双亲性质，能均匀分散于大部分极性和非极性溶剂中。
This simple and general process is environment-friendly, and the products obtained are amphiphilic and dispersible well in most of the polar and nonpolar solvents.
该制备方法具有一定的普适性，而且简单实用； 涉及的反应条件相对温和，获得的产物具有双亲性质，能均匀分散于大部分极性和非极性溶剂中。
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