于是他和他的同事对那些已经灭绝的鸟类羽毛的化石做了显微观察。
He and his colleagues made a microscopic inspection of fossils of feathers from extinct birds.
采用显微观察、拉伸和弯曲等力学测试方法，研究了竹材的微观结构和力学特性的关系。
The microstructure of bamboo was investigated and correlated with the mechanical properties of this material under tensile and flexural stresses.
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.
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