squall line

常见例句

• Squally thunderstorms within a squall line.
  颮線中的狂風雷暴。
• The squall line is a kind of instable and strong convective weather caused by the air with upper-layer dry and lower-layer wet in front of the upper-troposphere trough.
  分析指出，該颮線系統是由高空槽前型的上乾下溼引起的不穩定強對流天氣。
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