polar
/pəʊlə/
a. 两极的, 极地的, 正好相反的, 极性的
n. 极线, 极面
词形变换
复数 polars
英文释义
s. having a pair of equal and opposite charges
a. located at or near or coming from the earth's poles
a. of or existing at or near a geographical pole or within the Arctic or Antarctic Circles
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