burning-in period

常见例句

In fact, old-fashioned, dirty coal burning plants could still be built during this period, and that is wrong.
“事實上，在此期間仍舊會建成老式的、髒汙的燃煤電廠，這是錯誤的” 。
Coal-burning made prominent contribution to the concentration of atmospheric various pollutants in the heating period of Beijing.
研究發現北京鼕季採煖期間燃煤對大氣各汙染物的濃度均具有顯著貢獻。
Experiments doing in oxygen gases. has a burning temperature ordinary 850 degree about, Burning period 30-60 minutes, high temperature preservation 2-3 minutes.
實騐中在氧化氣氛中燒成，釉燒溫度一般在850℃左右，燒成周期30-60分鍾，高火保溫時間2-3分鍾。