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1·Nitrogen dioxide is a pollutant emitted by automobiles.

二氧化氮是汽车排放的一种污染物。

2·It makes it possible to analyze the light emitted from stars.

它使得分析恒星发出的光成为可能。

3·Our air quality now suffers from the effects of pollutants emitted directly from our cars.

我们的空气质量现在受到了汽车直接排放的污染物的影响。

4·Therefore, the methane now emitted from open landfills should instead be burned to produce electricity.

因此，现在从露天垃圾填埋场排放的甲烷应该被用来发电。

5·Sulphur gases were emitted by the volcano.

硫磺气体由火山喷发出来。《牛津词典》

6·Whitney blinked and emitted a long, low whistle.

惠特尼眨了眨眼，吹出了一声长而低沉的口哨。《柯林斯英汉双解大词典》

7·One is to plant more trees to absorb the emitted CO2 .

一种是种植更多的树木来吸收排放的二氧化碳。

8·Mounted on a plane flown at 3,000 feet at night, an infrared scanner measured the heat emitted by crops.

夜间，一架飞行在3000英尺高空的飞机上安装了一个红外扫描仪，用来测量农作物散发的热量。

9·Mounted on a plane flying at 3,000 feet at night, an infrared scanner measured the heat emitted by crops.

夜间，一架飞行在3000英尺高空的飞机上安装了一个红外扫描仪，用来测量农作物散发的热量。

10·Gas mixtures emitted from present-day volcanoes resemble this early atmosphere, suggesting its origin from volcanic eruptions.

现代火山释放出的气体混合物类似于这种早期的大气，这表明它（地球）起源于火山喷发。

(1)emitted light发射光；反射光；辐射光