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.
她对我们心情的细微观察让我感动。
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