The combat efficiency of equipments depends on maintenance support capability of equipments in the usage phase. Modern war has more and more demands on the maintenance support of equipments.
装备使用阶段的维修保障能力在很大程度上制约着装备作战能力的发挥，现代高技术战争对装备的维修保障能力提出了越来越高的要求。
Described are the main usage, technical parameters, structure and application of the tank car for dense phase conveyed aluminum oxide powder.
介绍了浓相输送氧化铝粉罐车的主要用途、技术参数、结构及应用情况。
It analyses quadratic phase stainless and its metal compound generated from weld seam and HAZ, which affect welded pipe usage property.
分析了双相不锈钢及其焊缝和热影响区中产生的金属间化合物等二次相对焊管使用性能的影响。
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