troposphere

n. 对流层 [医] 对流层

发音

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词形变化

tropospheres 复数 tropospheres

释义与例句

n.
  1. 1.

    The lower levels of the atmosphere extending from the surface of the Earth or another celestial body up to the tropopause. It is characterized by convective air movements and a large vertical temperature change.

    对流层

词汇关系

名词

上位词 1

layer

部分词 1

tropopause

整体词 1

atmosphere

词源

Borrowed from French troposphère. Equivalent to tropo- + -sphere.

来源：wiktionary