复杂试验 meaning in English

sophisticated testing

As the scale and complexity of a modern structural experiment increase , existing structural laboratories , even those large - scale ones , are facing increasing difficulties to satisfy various types of demands of experiments with their limited resources
随着现代结构试验规模及复杂性的不断增加,现有的结构实验室,甚至是大型结构实验室,由于资源有限,都逐渐面临着无法满足大规模复杂试验要求的挑战。