Despite China's progress, it lags in guidance and control, turbine engines, machine tools, diagnostic and forensic equipment and computer-aided design and manufacturing.
尽管中国取得了长足的进步，但在引导与控制系统、涡轮发动机、机床、医疗诊断与司法鉴定设备和计算机辅助设计与制造等方面还很落后。
Computer aided electromagnetic design tools using mode matching, FE, FDTD TLM techniques.
运用模式匹配、FE、FDTD和TLM等计算机辅助设计工具完成电磁场辅助设计。
In the study of hyraulic machine characteristics computer-aided design tools become increasingly important to support the machine design and performance prediction.
在流体机械特性研究中，计算机辅助设计工具变得越来越重要。
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