California instruments joins AMETEK as part of its Electronic instruments Group (EIG) — a provider in advanced monitoring, testing, calibrating, and display instruments.
The field monitoring for construction is conducted for forked tunnel. The comparison among the monitoring, testing and calculating data validates the model and numerical result.
对分岔隧道施工进行现场监测，监测数据与试验和计算数据的对比验证了试验和数值计算的正确性。
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Testing and monitoring of more than 300 close contacts failed to detect any further cases.