Concert grand with the same basic construction and features as the smaller model B. Very common concert instrument all over the world, designed about 100 years ago.
音乐会大相同的基本结构和功能的小模型湾非常常见的音乐会演奏乐器的世界各地,设计约100年前。
The basic thermology theory of optimized model is stated, its construction process when used in the model of walking beam furnace is analyzed with mathematics method.
文章阐述了优化加热模型的基本传热学原理,并用数学的方法剖析了此模型的建立过程以及应用到步进式加热炉中数学模型的建立过程。
According to the requirement of the project, the construction and the process information object of actual production in 847 Plant, we analyzed the basic elements and the function construction model.
根据需求方案以及847厂的实际生产组织结构和工艺信息对象,分析了产品制造工艺管理信息系统的基本组织元素和功能结构模型。
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