The article gave concrete measures and methods on the management of multimedia classroom based on the self work practice.
该文结合自身工作实际，介绍了一些关于多媒体教室的一些具体管理措施和方法。
Meantime, the concrete measures were elicited for bull selection, making and preservation of frozen semen, mating methods and frozen embryo pool establishment etc.
同时，从种牛选择，冻精制作与保存、选配方法、建立冷冻胚胎库等方面提出了具体技术措施。
The paper introduces effective measures and construction methods of preventing concrete -crack.
介绍了防止混凝土裂缝的有效措施及施工方法。
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