This article introduces foe characteristic and advantage of inner hole welded structure, and its designing, fabricating and running in a chemical fertilizer plant.
本文介绍了“内孔焊”结构的特点、优点以及该结构在我国某化肥厂装置中的设计、制造和运行。
2
The optimum fertilizer kinds of the soil were decided by the sticky plastic curve characteristic.
土壤的宜肥种类可以通过粘韧曲线型的特征来判断。
3
The quota system of competitiveness was established in response to the characteristic of phosphate fertilizer enterprises, and the mathematic model for quantitative assessment was put forward.