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.
“事实上，在此期间仍旧会建成老式的、脏污的燃煤电厂，这是错误的” 。
Coal-burning made prominent contribution to the concentration of atmospheric various pollutants in the heating period of Beijing.
研究发现北京冬季采暖期间燃煤对大气各污染物的浓度均具有显著贡献。
Experiments doing in oxygen gases. has a burning temperature ordinary 850 degree about, Burning period 30-60 minutes, high temperature preservation 2-3 minutes.
实验中在氧化气氛中烧成，釉烧温度一般在850℃左右，烧成周期30-60分钟，高火保温时间2-3分钟。