used to wrap around pipes or boilers or laid in attics to prevent loss of heat
lagging的用法和樣例：
例句
用作形容詞 (adj.)
Worry about Brazil's lagging education system is becoming more widespread. 越來越多人已在擔憂巴西落後的教育制度。
Under the lagging condition at that time, the American gentlemen set up a democratic system base on an agriculture country and carried forward. 在當時極其落後的條件下，美國的紳士們在一個基本上都是農民的農業國家建立民主制度，而且發揚光大。
Investors tend to brush off jobless reports as what they call a lagging indicator. 投資者希望能擺脫失業報告，他們稱之為遲緩的指示器。
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