1)  one section crushing
一段破碎
2)  1st stage
一段
3)  Member 1 of Shahejie Formation
沙一段
1.
The evaluation of hydrocarbon-generating ability in Member 1 of Shahejie Formation of Dongpu sag,China;
东濮凹陷沙一段烃源岩生烃能力评价
2.
Geochemical characteristics of salt lake facies oil from member 1 of Shahejie formation in Pucheng area in Dongpu depression;
东濮凹陷濮城地区沙一段盐湖相原油地球化学特征
3.
Study on oil/gas-bearing of lacustrine ooide-limestone of Member 1 of Shahejie Formation in Dongxin Oilfield;
东辛油田下第三系沙一段湖相鲕粒灰岩的含油性
4)  primary reformer
一段炉
1.
Caculation of available energy of the low temperature flue gas in the primary reformer of ammonia;
合成氨一段炉低温烟道气的有效能计算
2.
Analysis of primary reformer in CF BRAUN ammonia unit;
CF BRAUN合成氨装置一段炉分析
3.
The heat transfer model of heart combustion and reaction kinetics model of gassolid catalytic reaction in tube are establish to simulate the process of radiant section of primary reformer of Branu synthetic ammonia plant.
在建立炉膛燃烧传热模型和管内气固相催化反应模型的基础上对布朗工艺合成氨装置一段炉辐射段进行模拟计算。
5)  primary hydrogenation
一段加氢
1.
Its catalytic activity and selective hydrogenation performance were evaluated by pyrolysis naphtha primary hydrogenation as a probe reaction.
采用氢电弧等离子体法制备的纳米钯粉制备了纳米Pd/Al2O3催化剂,采用X射线粉末衍射(XRD)、扫描电镜(SEM)、透射电镜(TEM)、X光电子能谱(XPS)和程序升温还原(TPR)等物理化学手段对其进行了表征,并在裂解汽油一段加氢反应中考察了其催化活性和选择性。
2.
The design of primary hydrogenation reactor was improved and the diene value in the reactor outlet was stabilized.
从裂解汽油加氢的过程及原理出发 ,分析了裂解汽油加氢装置中二段加氢反应器压降升高过快的原因 ,改进了一段加氢反应器的设计 ,稳定了一段加氢反应器出口的双烯值 ;在二段加氢反应器的设计上 ,采用了催化剂系统的尺寸梯度和活性梯度装填方式 ,有效解决了灰垢在催化剂床层上的沉积 ,并通过严格控制二段催化剂在硫化态下运行 ,保证了催化剂的选择性 ,防止了压降的过快升
6)  lower part of Nantun Formation
南一段
参考词条
补充资料:金鼎一溪云 本名巫山一段云 赠孙志道王居
【诗文】:
紫陌忧危客,红尘名利家。区区终日谩咨嗟。无计伴烟霞。傥悟浮生梦短。咫尺蓬莱仙馆。饥餐渴饮困时眠。馀事总无牵。


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