In many countries where contact between domestic and wild animals is commonplace, early disease-detection systems are still not as good as they could or should be.
家畜和野生动物的接触在许多国家都司空见惯，早期疾病检测系统也不尽如人意。
The main surface of the workpiece, the assembly surface should be first processing, thus early detection of defects in the workpiece surface may be the main.
工件的主要表面，装配基面应先加工，从而及早发现毛坯中主要表面可能存的缺陷。
Conclusions Based on epidemiological and clinical features of YESCD, syndromic surveillance should be the core of the comprehensive surveillance used in early detection of YESCD.
结论根据该病的流行病学及临床特点，以症状监测为核心的综合监测方法可以在该病的早期发现中加以运用。
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