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一次空气
1、primary cell───[电]原电池
2、primary market───初级市场；初次市场（即证券发行机构）
3、primary aim───主要目的；首要目的
4、yucang primary───初级玉仓
5、primary───adj.主要的；初级的；基本的；n.原色；最主要者
6、led primary───led初级
7、primary source───主源；第一手来源；原始来源，第一手来源
8、primary six───初六
9、primary colors───红、黄、蓝三原色；n.红，黄，蓝三原色
1、It was solved by increasing the oxygen volume, opening wide the grading air damper, lowering speed of the primary air.───通过采取增加氧量、开大分级风挡板开度，降低拱上燃烧器风速等措施，该问题得到有效解决。
2、The problem that the primary air leakage of tri sector AH is large arises some domestic customers attention.───空气预热器一次风泄漏量偏大，引起国内部分用户的反响。
3、After the unit put into production, auto adjusting equipment of primary air flow of coal mill could not run normally.───浙江沿海某电厂机组在投运后，发现磨煤机一次风量自动调节XiTong不能正常投运。
4、When the primary air blast wave from the explosion strikes the ground another blast wave is produced by reflection.───当爆炸引起的入射冲击波触及地面时，由于波的反射便产生另一冲击波。
5、primary air leakage of trisector AH is large arises some domestic customers attention.───空气预热器一次风泄漏量偏大，引起国内部分用户的反响。
6、The problem that the primary air leakage of trisector AH is large arises some domestic customers attention.───三分仓空气预热器一次风泄漏量偏大，引起国内部分用户的反响。
7、The air plenum under the grid at the base of the furnace distributes primary air to the fluidizing nozzles in the furnace floor.───空气充满物质的空间在格子之下在火炉的基础分配对火炉地板的液化喷嘴的主要空气。
8、Simulation results agree well with experimental data. The primary air amount and its temperature are also investigated.───数值模拟结果与热态试验结果体现了一致性，两种结果分布趋势吻合良好。
9、Exhaust emission of vehicle engines is one of the primary air pollution sources.───车用内燃机的废气排放是大气污染的主要污染源之一。