单词：emission source
emission source的用法和样例：
例句
- On the other hand, the influence on air quality is relevant only in the immediate vicinity of the emission source.另一方面，对空气质量的影响只限于排放源经过的邻近地区。
- This chapter describes methods of estimating airborne pollutant concentration distributions associated with various emission sources.本章论述几种有关各种排放源的大气污染物浓度分布的估算方法。
- Furthermore, a field emission triode device using the self-organized nanodot arrays as electron emission source was proposed and fabricated.本研究亦利用奈米点作为电子发射源制作场效发射三极体元件。
- The distance between the acoustic-emission source and the receiving transducer, and the background noise level are primary factors in selecting a particular frequency band.声发射源与接收讯号传感器间的距离以及环境噪声的电平是选择频带的主要依据。
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