The three-member ring structure transition region and structure transition state were found out.
得到了各反应通道的结构过渡区和结构过渡态。
Exothermic efficiency, metallographical structure and transition region of coating layer were also investigated.
还研究了放热效应，金相组织与涂层过渡层。
The root-stem transition region and the root in the elder plant reproduce the abnormal secondary structure which is similar to the rode caused by separation of the vascular bundle.
在多年生植株根茎过渡区出现的“绳索状”异常结构则是由于其内部维管束裂分的结果。
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