Since its founding, the World Health Assembly has been concerned about smallpox control.
世界卫生组织自创建之日起就已着眼于天花控制。
Design and analyze the machining process, assembly adjusting and inspecting methods of square billet continuously founding machine external arc side sector section frame.
分析并设计了方坯连铸机外弧侧扇形段框架加工工艺及装配、调整、检测弧度的方法。
Design and analyze the machining process, assembly adjusting and inspecting methods of square billet continuously founding machine external arc side sector section frame.
分析并设计了方坯连铸机外弧侧扇形段框架加工工艺及装配、调整、检测弧度的方法。
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