DFAC

DFAC and urea were mainly derived from continental sources, and urea in spring aerosols were associated with the sublimation of urea in soils.

其中DFAC和尿素主要来自于陆源的影响，春季，气溶胶中尿素氮主要与土壤中尿素的升华有关。

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Structure and Analyse for DFAC Call Center

东风汽车股份有限公司呼叫中心构建与分析

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Developing Tendency of the Light Truck Market of China in the Following 10 Years and the Countermeasure Study of DFAC

未来10年中国轻型汽车市场发展趋势及东风汽车对策研究

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Comparison to the Primary Energy Efficiency Ratio ( PER) under changed conditions between Direct Fired Absorption Chiller ( DFAC) and electric driven Air Source Heat Pump Chiller ( ASHP) is introduced.

对直燃型溴化锂吸收式机组和电动风冷热泵机组在变工况下的一次能源利用率PER作了比较。

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The Design of Performance Management System for DFAC

东风汽车股份有限公司绩效管理体系设计

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The Marketing Management Research of DFAC Light Truck Network Card

东风轻卡营销管理研究

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This paper is doing research and analysis on the raw material logistic administration of the DFAC in terms of modern theories of logistics.

本文运用现代物流理论对东风汽车公司原材料物流管理进行了分析和探讨。

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It is stated that the primary energy efficiency of DFAC is higher than ASHP under the rating condition.

指出在额定工况下，直燃机一次能效率要高于风冷热泵。

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The characteristics between two commonly used cooling/ heating source-Direct Fired Absorption Chiller ( DFAC) and electric-driven Air Source Heat Pump Chiller ( ASHP) are compared by the concepts of Primary Energy Efficiency Ratio ( PER).

采用一次能源利用率PER的概念，对目前广泛应用的空调冷热源直燃型溴化锂吸收式机组和电动风冷热泵机组作了比较。

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