Conclusion The development of direct digital radiography is more widely.
结论：直接数字化摄影的发展前景更为广阔。
This paper introduces a DDC (Direct Digital Control) temperature system.
介绍一种DDC(直接数字控制)温度系统。
Then, on this basis, queted computer Direct Digital Control (DDC), better effect will be given.
然后，在此基础上进行计算机DDC控制，效果就会更好；
The principal conclusions have the important value for the design of direct digital relief valve.
主要结论对直接数字式溢流阀的设计具有重要的指导意义。
The principal conclusions have the important value for the design of direct digital relief valve.
主要结论对直接数字式溢流阀的设计具有重要的指导意义。
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