| 释义 |
〔troposphere〕The lowest region of the atmosphere between the earth's surface and the tropopause, characterized by decreasing temperature with increasing altitude.对流层：位于地表及对流层顶的大气最低层；气温随高度的增加而降低〔tropopause〕The boundary between the troposphere and the stratosphere varying in altitude from approximately 8 kilometers (5 miles) at the poles to approximately 18 kilometers (11 miles) at the equator.对流层顶：位于对流层和平流层之间的界限，其高度从两极的约8公里(5英里）至赤道上约18公里(11英里） |