| 词汇 | primary air造句 |
| 释义 | primary air造句1、The NOx emission is high along with the great of primary air rate. 2、Exhaust emission of vehicle engines is one of the primary air pollution sources. 3、Meanwhile, the control of air flow, furnace negative pressure and primary air flow are introduced. primary air翻译【机】 一次空气, 主空气 |
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