在微观上应用显微镜下录象测氢试验法观测焊接接头中氢的动态行为，明确了氢的微观扩散行为及逸出过程。
The dynamic behavior of hydrogen in this joint was observed by photographing under the microscope, the diffusion behavior and the escaping course of hydrogen was definited.
研究了花岗岩板在单轴压缩应力状态下的微观破坏过程。试验主要采用了液压加载台、光学显微镜、同步录象系统以及二次复型技术等。
Progressive cracking of granite plate under uniaxial compression had been investigated by using a loading frame, which could be well equipped with optical microscope and video recorder.
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