troposphere

【气】对流层

troposphere

〈气象〉对流层

troposphere

[气]对流层

troposphere

the lowest atmospheric layer, about 18 kilometres (11 miles) thick at the equator to about 6 km (4 miles) at the Poles, in which air temperature decreases normally with height at about 6.5°C per km

troposphere

1. the lowest atmospheric layer; from 4 to 11 miles high (depending on latitude)

(hypernym)

(part-holonym)

(part-meronym)